Ex Parte 7,096,242 et alDownload PDFPatent Trial and Appeal BoardSep 27, 201295000351 (P.T.A.B. Sep. 27, 2012) Copy Citation UNITED STATES PATENT AND TRADEMARK OFFICE UNITED STATES DEPARTMENT OF COMMERCE United States Patent and Trademark Office Address: COMMISSIONER FOR PATENTS P.O. Box 1450 Alexandria, Virginia 22313-1450 www.uspto.gov APPLICATION NO. FILING DATE FIRST NAMED INVENTOR ATTORNEY DOCKET NO. CONFIRMATION NO. 95/000,351 02/21/2008 7,096,242 72037.00200.RE02 7268 43023 7590 09/27/2012 Thomas Swenson 1118 13th Street A-5 BOULDER, CO 80302 EXAMINER DEB, ANJAN K ART UNIT PAPER NUMBER 3992 MAIL DATE DELIVERY MODE 09/27/2012 PAPER Please find below and/or attached an Office communication concerning this application or proceeding. The time period for reply, if any, is set in the attached communication. PTOL-90A (Rev. 04/07) UNITED STATES PATENT AND TRADEMARK OFFICE ____________ BEFORE THE PATENT TRIAL AND APPEAL BOARD ____________ WINBOND ELECTRONICS CORPORATION OF TAIWAN and WINBOND ELECTRONICS CORPORATION AMERICA OF SAN JOSE, CA Requesters v. THE QUANTUM WORLD CORPORATION Patent Owner and Appellant ____________ Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,2421 Technology Center 3900 ____________ Before KARL D. EASTHOM, STEPHEN C. SIU, and JOSIAH C. COCKS, Administrative Patent Judges. COCKS, Administrative Patent Judge. DECISION ON APPEAL 1 The patent involved in this reexamination proceeding appeal (the “’242 patent”) issued to Scott Wilbur on August 22, 2006. Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 2 A. STATEMENT OF THE CASE Summary Patent Owner The Quantum World Corporation (“Quantum”)2 appeals under 35 U.S.C. §§ 134(b) and 315(a) the Examiner’s decision to reject claims 14, 20, and 22-25.3 The Third-Party Requesters sought reexamination of the ‘242 Patent in a paper filed February 21, 2008 but have filed no briefs in this appeal. The Examiner filed an Examiner’s Answer in support of his decision.4 We have jurisdiction under 35 U.S.C. §§ 134(b) and 315(a). We reverse the Examiner’s decision to reject claims 22-25. We affirm the Examiner’s decision to reject claims 14 and 20. The Invention The ‘242 Patent characterizes its disclosed invention as relating to “random number generators, and more particularly to a random number generator that generates true binary random sequences.” (‘242 patent, 1:15- 17.) A distinction is drawn between “true random number generators” and “pseudorandom number generators.” (Id. at 1:24-28.) That distinction is expressed as (id.): 2 See Patent Assignment Abstract of Title, Reel 018787 Frame 0706 which was entered into the record of this proceeding as “Title Report” on March 7, 2008. 3 See Quantum’s “CORRECTED APPEAL BRIEF” filed April 28, 2010 (“App. Br.”). 4 See Examiner’s Answer mailed July 1, 2010. Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 3 Random number generators may be divided into two types: true random number generators, which generate numbers from a non- deterministic source, and pseudorandom number generators, which generate numbers from a deterministic algorithm. By way of example uses, the ‘242 Patent states “[a] high quality random number generator is necessary for functions from Monte Carlo- based studies used in computer modeling of the global economy, to cryptography, to parapsychological studies, to marketing research, to lottery games.” (Id. at 1:28-32.) Claims 22 and 25 are independent claims. Claims 23 and 24 depend from claim 22. Claims 14 and 20 depend, respectively, from claims 8 and 16, which have been canceled and are not on appeal. Claim 22, which is illustrative of the appealed subject matter, reads as follows (App. Br., CA-ii, Claims App’x.): 22. A true random number generator system comprising: a hardware device for producing a binary true random sequence of signals; and a computer for utilizing said binary true random sequence of signals; wherein |B2| ≤ 0.002 and |SD(t)| ≤ 0.0004, where |B2| is the fractional bias in the 1, 0 probability of said binary true random sequence of signals and SD(t) is the serial dependence as a function time of said binary true random sequence of signals. Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 4 The Prior Art U.S. Patents Cohn (or “‘941 patent”) 3,706,941 Dec, 19, 1972 Porter (or “‘366 patent”) 4,355,366 Oct. 19, 1982 Ogrodski (or “‘259 patent”) 4,799,259 Jan. 17, 1989 Brown et al. 4,853,884 Aug. 1, 1989 (“Brown” or “‘884 patent”) Schulz (or “‘176 patent”) 4,905,176 Feb. 27, 1990 Reinhardt et al. 5,224,165 Jun. 29, 1993 (“Reinhardt” or “‘4165 patent”) James, III 5,251,165 Oct. 5, 1993 (“James” or “‘1165 patent”) Davis (or “‘828 patent”) 5,539,828 Jul. 23, 1996 Non Patent Literature Richter, Manfred. “A noise generator for obtaining quasi-ideal random numbers for stochastic simulation.” A dissertation submitted to the Faculty of Electrical Engineering of the Rhineland-Westphalia Technical Institute at Aachen in order to obtain the academic degree of Doctor of Engineering. Dated 1992. (“Richter”)5 Murry, Hershell F. “A General Approach for Generating Natural Random Variables.” IEE Transactions on Computers. December 1970. (“Murry”)6 5 Exhibit B in the Evidence Appendix of Quantum’s Appeal Brief. (“Ex. B”) 6 Ex. F Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 5 Gude, Michael, “Concept for a High Performance Random Number Generator Based on Physical Random Phenoms.” FREQUENZ, Journal of Telecommunications, 1985, pp. 187-190. (“Gude”)7 Radin, Dean I., “Testing the Plausibility of PSI-Mediated Computer System Failures.” Journal of Parapsychology, Vol. 54, March 1990, pp. 1-19. (“Radin”)8 IBM Technical Disclosure Bulletin, Volume 30, Number 11, April 1988, pp. 333-335. (“IBM TDB”)9 CALMOS™ NM 810 RNG (Random Number Generator) data sheets. November 1989. (“NM 810 RNG”) Admitted Prior Art (“APA”) appearing at column 24, line 53 through column 25, line 13 (e.g., see Ans., p. 27) and at column 2, lines 46-60 (e.g., see Ans., p. 31) of the ‘242 Patent. The Involved Rejections Anticipation The Examiner entered the following rejections under 35 U.S.C. § 102(b): (1) The anticipation of claims 22-25 by Richter; (2) The anticipation of claims 14 and 20 by Radin; (3) The anticipation of claim 14 by NM 810 RNG; and (4) The anticipation of claims 22-25 by Gude. 7 Ex. J 8 Ex. K 9 Ex. L Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 6 Obviousness The Examiner entered the following rejections under 35 U.S.C. § 103(a): (5) The unpatentability of claim 20 over IBM TBD and Radin; (6) The unpatentability of claim 20 over IBM TBD, Davis, and APA; (7) The unpatentability of claim 20 over Schulz, APA, and Radin; (8) The unpatentability of claim 20 over NM 810 RNG and APA; (9) The unpatentability of claims 14 and 20 over Cohn and APA; (10) The unpatentability of claim 14 over Murry and APA; (11) The unpatentability of claims 14 and 20 over Porter and Radin; (12) The unpatentability of claims 14 and 20 over Porter, James, and APA; (13) The unpatentability of claims 14 and 20 over Porter, Davis, and APA; (14) The unpatentability of claims 14 and 20 over Gude and APA; (15) The unpatentability of claim 20 over Ogrodski and Radin; (16) The unpatentability of claim 20 over Ogrodski, James, and APA; (17) The unpatentability of claim 20 over Ogrodski, Davis, and APA; (18) The unpatentability of claims 14 and 20 over Brown and Radin; (19) The unpatentability of claims 14 and 20 over Brown, James, and APA; Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 7 (20) The unpatentability of claims 14 and 20 over Brown, Davis, and APA; (21) The unpatentability of claims 14 and 20 over Reinhardt, James, and Radin; (22) The unpatentability of claims 14 and 20 over Reinhardt, James, and APA; and (23) The unpatentability of claims 14 and 20 over Reinhardt, Davis, and APA. B. ANALYSIS By our count, the Examiner has entered twenty-three separate rejections in connection with Quantum’s claims. In challenging the Examiner’s rejections, Quantum argues the claims in two groupings: (1) claims 22-25; and (2) claims 14, 20, and 25. Claims 22-25 Issues- Claims 22-25 With respect to claims 22-25 the following issues arise: (1) Did the Examiner correctly find that Richter discloses a true random number generator incorporating a “serial dependence” value of less- than or equal to 0.0004 as required by claims 22 and 25? (2) Did the Examiner correctly find that Gude discloses a true random number generator incorporating a “serial dependence” value of less-than or equal to 0.0004 as required by claims 22 and 25? Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 8 Discussion – Claims 22-25 Common features appearing in claims 22 and 25 are at issue in connection with each of the separate anticipation rejections based on Richter and Gude. In particular, claims 22 and 25 each requires the production of “a binary true random sequence of signals.” (App. Br., CA-ii, Claims App’x.) In connection with those signals, the claims require specific values for the “serial dependence” SD(t) and the “fractional bias” B2. (Id. at CA-ii and CA- ii.) As explained in the ‘242 Patent, “serial dependence” SD(t) and “fractional bias” B2 constitute parameters used to evaluate the “randomness quality” of a given random sequence. (‘242 patent, 25:63-26:25.) In a theoretical context, a true or optimally random sequence incorporates values of “0” for each of SD(t) and B2. (Id.) However, real-world random sequence generators have physical constraints which impose imperfection in attaining ideal randomness such that those parameters are not zero. (Id.) The invention of the ‘242 Patent provides a random number generator configured so as to have values for SD(t) and B2 which are sufficiently small in magnitude such that it would take an acceptably long period of years to demonstrate defects in randomness, i.e., indication of non-randomness, with a 95% confidence level. (Id. at 2:10-22; 27:1-16.) Claims 22 and 25 each includes a clause conveying the same values required for SD(t) and B2. In claim 22, the clause reads (App. Br., CA-ii, Claims App’x.): wherein |B2| ≤ 0.002 and |SD(t)| ≤ 0.0004, where |B2| is the fractional bias in the 1, 0 probability of said binary true random Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 9 sequence of signals and SD(t) is the serial dependence as a function time of said binary true random sequence of signals. Richter In accounting for the above-noted values of B2 and SD(t) in Richter, the Examiner stated (Ans. 12): Richter dissertation teaches that the fractional bias in the 1, 0 probability is less than 0.002 since the distribution P(0)=P(1) = ½ for a symmetrical distribution and the serial dependency (autocorrelation) is less than 0.0004 (ACF is of the order of magnitude of 10-100) (Section 4.1 page 39 and Section 4.3.2 page, 58). Richter disclosed that the exact uniform distribution P(0) = P(1) = ½ can be produced with the help of a symmetrification circuit (see Richter dissertation: Section 4.3.2). Thus, the Examiner, pointing to pages 39 and 58 of sections 4.1 and 4.3.2, respectively, in Richter, found that “distribution P(0) = P(1) = ½” constitutes a fractional bias of less than 0.0002 and an “autocorrelation” function “ACF” with an order of magnitude of 10-100 constitutes a serial dependence of less than 0.0004. That is the underlying factual basis for the Examiner’s conclusion that Quantum’s claims 22 and 25 were anticipated. Quantum contests the Examiner’s conclusion with respect to each of the fractional bias values and serial dependence values. With respect to the serial dependence requirement, Quantum submits the following (App. Br., p. 5) (emphasis in original). On page 39, Richter states that the calculated autocorrelation factor for the output of the noise generator is below 10-100. The Examiner incorrectly relies on this passage as disclosing the serial dependence of the RNG [Random Number Generator], which is what the claims address. The correlation factor for the output of the noise Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 10 generator is not the same as the correlation factor at the output of the RNG. Section 4.1, in which the cited passage appears, is entitled “4.1 The Noise Generator.” The Richter reference explicitly states that the correlation factor for the output of the noise generator is “so slight, relative to the correlations that are brought about in the scanning circuit by non-ideal components, that it can be disregarded.” Richter, page 39. In other words, this autocorrelation factor will be dwarfed by the autocorrelations introduced when the noise signal is digitized. The Examiner’s identification of Richter’s confirmation of the estimated 10-100 correlation coefficient (see RAN at 60) does not change this fact – the measured values are still the measured values of the noise generator, not the RNG, and the numbers will still be dwarfed by the correlations introduced by the scanning circuit. The Examiner’s identification of the correlations coefficient of the noise generator as disclosing the limitations of claims 22-25 – which specify the quality of the outputs of the RNG – is incorrect. As a result, the Examiner has not identified any disclosure by Richter of the serial dependence levels, SD(t), required by claims 22-25. Thus, Quantum submits that the “autocorrelation” factor having a value of 10-100 does not constitute a serial dependence value of a random number generator (“RNG”) as required by claims 22 and 25. Instead, Quantum is of the view that the referenced autocorrelation coefficient simply constitutes a correlation factor associated with a noise generator which is not in and of itself a true random number generator. In support of its position, Quantum points to description in Richter that the autocorrelation factor may be disregarded as inconsequential as compared with another component – a scanning circuit. In response to Quantum’s position, the Examiner seemingly modifies his stance stating (Ans., p. 61): Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 11 Appellant’s arguments (Appeal Brief: pages 4-7) with respect to the rejection of claims 22-25 under 35 U.S.C. 102(b) as being anticipated by the Richter dissertation are not convincing because Richter disclosed that the correlations introduced by non-ideal components in the scanning circuit are slight and can be disregarded therefore examiner believes that the correlation at the output of the RNG will be close to the calculated correlation factor for the output of the noise generator which is below 10-100. Thus, the Examiner appears to urge that the disclosed correlation value of 10-100 for the output noise generator does not itself constitute am output value for a RNG. Rather, now according to the Examiner, the correlation value of the output of the RNG will be “close to” the correlation value of the noise generator and thus the pertinent claims are satisfied. We are not persuaded by the Examiner. As set forth in Richter, the random number generator that is disclosed is composed of “five primary assemblies.” (Richter, p. 4210.) The noise generator and the scanning circuit each form one of those assemblies. (Id.) In light of Richter’s disclosure at page 3911, it is evident that the noise generator will have one correlation coefficient (i.e., 10-100) and the scanning circuit will have another correlation coefficient. It is not apparent what the actual magnitude of the latter correlation coefficient is, however, the 10-100 value associated with the noise generator is disclosed as being “so slight” that it may be “disregarded” as compared with the correlation coefficient of the scanning circuit. (Richter, 10 We observe that Richter includes several duplicate page numbers, including two pages “42.” The page referenced here is the first occurrence of page 42 associated with chapter 4. 11 Richter also includes two pages “39.” The referenced page is the second occurrence of page 39 associated with section 4.1. Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 12 p. 39.) Even assuming that the respective correlation values disclosed are each properly viewed as forming “serial dependencies,” we do not discern how the Examiner arrived at the above-noted conclusion as to the magnitude of serial dependency of a RNG as a whole. Each of the noise generator and scanning circuit are simply components of the RNG and, evidently, have correlation values that differ wildly in terms of magnitude. The Examiner does not meaningfully articulate why he believes that the correlation value of the RNG will be “close to” that of any one of its subsidiary components, e.g., a noise generator. We have considered the Examiner’s view but, on this record, we do not discern that the Examiner has suitably established that Richter itself discloses a true random number generator system with a serial dependence of less than or equal to 0.0004 as is required by each of claims 22 and 25. Because anticipation requires that a single prior art reference disclose all elements of the claimed invention, In re Spada, 911 F.2d 705, 708 (Fed. Cir. 1990), we do not sustain the rejection of claims 22-25 as anticipated by Richter. Gude The Examiner also rejected claims 22-25 as anticipated by Gude. The issue raised by Quantum in connection with that rejection is essentially the same as that discussed above regarding the Richter rejection. In rejecting claims 22-25, the Examiner stated the following (Ans., p. 22): With respect to claims 22-25, the Gude publication discloses all of the claimed limitations including true random number generator system (see Fig. 1, 2 shown below) and producing an utilizing true random bit stream (Fig. 6, 7) and that the fractional bias in the 1,0 probability of Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 13 the bit stream is less than 0.002 since the Gude publication disclosed the distribution P0 = P1 = 0.5 (page 188 col. 2, see below) and the serial dependency (autocorrelation) is less than 0.0004 (ACF < 10-50). We again turn our focus to the “serial dependence” requirement of claims 22 and 25, now in the context of Gude. The Examiner found that the requirements was met in Gude by its disclosure of an “autocorrelation” function (ACF) less than 10-50. In contesting the Examiner’s position, Quantum argues the following (App. Br., p. 8): The Examiner cites column 1 of page 188 as disclosing an ACF less than 10-50. As discussed above with respect to Richter’s ACF of 10-100, Gude’s disclosure is the ACF of the analog noise signal, not the output of the RNG. Thus, as it did in connection with Richter, Quantum contends that the ACF value relied upon by the Examiner as the required serial dependence is a value associated with a noise signal as juxtaposed with the output of an RNG. In response to Quantum’s contention, the Examiner urges the following (Ans., pp. 62-63): Appellant’s arguments that the value of ACF less that [sic] 10-50 disclosed by Gude is for the analog noise signal and not the output of the RNG is not convincing because Gude disclosed that when the generator is stationary (as with radioactive generator) ideal uniform distribution of the generated bits can be achieved. The “generated bits” disclose by Gude is clearly not “analog noise signal” as stated by the Appellant. Thus, the Examiner equates Gude disclosure of an ACF of 10-50 with something termed “generated bits” rather than a noise signal. Evidently, on Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 14 that basis the Examiner concludes that the claim requirement that a true RNG has a serial dependence of less than or equal to 0.0004 is met in Gude. We are not persuaded that the Examiner has directed us to content of Gude expressing a value of the serial dependence of a true RNG. Page 188 of Gude includes the following statement: “[t]o achieve a low autocorrelation function (ACF) of the generated bitstream the noise signal must have a low ACF, too.” (Gude, p. 188, section 3.1.) The ensuing discussion describes determination of an ACF in connection with an “RC- filtered noise signal” culminating in the calculation of an “extremely low value” ACF of less than 10-50. The Examiner has apparently equated Gude’s disclosure of a “generated bitstream” with the output of a true RNG. Even assuming that is correct, we share Quantum’s view that the discussion of obtaining an “ACF” value of less than 10-50 pertains to the noise signal and not to the generated bitstream. As with Ricther, in Gude, a noise signal is a core component of its disclosed RNG which is made up of additional components such as a sampling circuit. (Gude, p. 188, col. 2, section 4.) We do not discern that the discussion in Gude, and on which the Examiner relies, accounts for the serial dependence values of a true RNG that are required by Quantum’s claims 22-25. For the foregoing reasons, we do not conclude that the Examiner has appropriately justified the proposed anticipation rejection involving Gude with adequate underlying support. Accordingly, we do not sustain the rejection. Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 15 Conclusion – Claims 22-25 (1) The Examiner did not correctly find that Richter discloses a true random number generator incorporating a “serial dependence” value of less- than or equal to 0.0004 as required by claims 22 and 25. (2) The Examiner did not correctly find that Gude discloses a true random number generator incorporating a “serial dependence” value of less- than or equal to 0.0004 as required by claims 22 and 25. Claims 14 and 2012 Issues – Claims 14 and 20 With respect to claims 14 and 20, the following issues arise: (3) Did the Examiner correctly determine that Radin discloses “utilizing” random numbers in association with a general-purpose computer? (4) Did the Examiner correctly determine that Gude discloses an “interface” between a true RNG and a computer? (5) Did the Examiner correctly determine one with ordinary skill in the art would have appreciated from other involved prior art that an “interface” may be established between a true RNG and a computer? 12 We observe that Quantum also argued claim 25 along with claims 14 and 20. However, the only rejections advanced in connection with claim 25 are the above-discussed anticipation rejections over each of Richter and Gude. We have already concluded that those involving claim 25 cannot be sustained. Therefore, we need not address further any additional arguments advanced in conjunction with claim 25. Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 16 (6) Did the Examiner correctly determine one with ordinary skill in the art would have appreciated from the involved prior art that a “power connection” may be established between a true RNG and a computer? (7) Did the Examiner correctly determine that a “source of a clock signal,” as required by claims 14 and 20, is inherent to the disclosures of Murry and NM 810 RNG? Discussion – Claims 14 and 20 Claim 14 is dependent on canceled independent claim 8 and claim 20 is dependent on cancelled independent claim 16. The Examiner rejected claim 14 as anticipated by each of Radin and NM 810 RNG.13 The Examiner also rejected claim 20 as anticipated by Radin.14 Finally, the Examiner rejected claims 14 and 20 as obvious over a variety of combinations of prior art.15 Claims 14 and 20 recite the production of a binary true random sequence of signals. Each claim also requires (Claims App’x, App. Br., CA- i, CA-ii): a general-purpose computer for utilizing said binary true random sequence of signals; and 13 These rejections are numbered (2) and (3) in “The Involved Rejections” section of this opinion. 14 Rejection numbered (2). 15 Rejections numbered (5) through (23). Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 17 an interface for applying said binary true random sequence of signals to said general-purpose computer.16 Claim 14 and 20 further recite the presence of a random number generator circuit with (id.): a power connection operable to provide power from said general-purpose computer to said random number generator circuit. Lastly, the claims set forth “a source of a clock signal” as a part of the random number generator circuit. (id.) Each of the above-quoted features is challenged by Quantum in some fashion in connection with one or more of the prior art rejections which have been advanced by the Examiner. In shorthand, we refer to those features as: (1) the “utilizing” requirement; (2) the “interface” requirement; (3) the “power connection” requirement; and (4) the “clock signal” requirement. (1) The “utilizing” requirement We have reviewed Quantum’s Appeal Brief and the Examiner’s Answer. In light of that review, we discern that the Examiner has relied on several of the prior art references of record as accounting for the “utilizing” feature of claims 14 and 20. However, Quantum’s challenge to the Examiner’s rejections with respect to that feature focuses simply on Radin. Radin is an article published in the Journal of Parapsychology which is titled “Testing the Plausibility of PSI-Mediated Computer System Failures.” Radin describes the use of a “truly random number generator” 16 These limitations involving “utilizing” the binary true random sequence of signals and an “interface” to the general-purpose computer appear in each of claims 8 and 16, on which claims 14 and 20 depend, respectively. Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 18 (Radin, p. 3) and includes a circuit including “a random number generator on a chip” (id. at p. 4) Radin also expresses that a “Commodore Amiga 500TM computer was used to interface to this circuit.” (Id.) Throughout the Examiner’s Answer, the Examiner has expressed that Radin discloses utilization of a true random sequence of signals. (E.g., Ans., pp. 26, 29.) Quantum makes the following argument in connection with alleged deficiencies in Radin (App. Br., p. 13; see also p. 21) (emphasis in original): Examiner states that “The Radin publication also disclosed general-purpose personal computer (Commodore Amiga 500TM) (page 4, 2d paragraph) interfaced with random number generator and utilizing said binary true random sequence of signals for performing RNG psi experiments.” RAN at 62. The Examiner is correct that the closest disclosure by Radin of “utilization” is the use of the numbers to perform psi experiments. However, the psi experiments described in the Radin publication consist only of the Author’s attempt to mentally influence the randomness of the numbers generated while eating girl scout cookies or viewing erotic pictures. Radin at 10, 12-13. This is not utilization by a computer as is required by the claims. Rather, to the extent that it can be called utilization at all, it is utilization by Radin himself. At the outset, although Quantum characterizes its claims as requiring “utilization by a computer,” claims 14 and 20 (via their dependency on claims 8 and 16, respectively) recite only that the computer is “for utilizing” the binary true random sequence of signals. Thus, the claims do not require any active step or actual procedure of utilizing the sequence of signals. Instead, the computer must simply be capable of using, or be operable to use, the signals once received. Quantum does not offer any explanation as to why the computer disclosed in Radin, i.e., the Commodore Amiga 500TM Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 19 computer, is not a suitable component “for utilizing” data constituting a sequence of signals regardless of whether the data is actually utilized. In any event, even if claims 14 and 20 were construed as requiring actually utilization of a random sequence of signals, we are unpersuaded by Quantum that Radin does not reasonably disclose such utilization. Radin clearly provides, with respect to the experiments disclosed therein, that “[a]ll phases of the experiments were computer-controlled, including data collection, storage, and analyses.” (Radin, Abstract.) In connection with the data generated and stored on the computer, Radin also conveys that “randomness checks were performed by a program running on the Amiga 500.” (Id. at p. 6, second paragraph) Furthermore, the computer is programmed to provide “feedback” with respect to the collected data. In particular, Radin states (id. at p. 9, second full paragraph): For a novel form of feedback, I programmed the computer to use synthesized speech phrases to announce when Sample 4 was about to be collected (the computer spoke, “Data collection how”), when it had ended (End data collection”), and the number of bits occurring in that sample (“Bit sum equals [a number])”. Lastly, it is apparent from the various tables and graphs in Radin’s disclosure reflecting the pertinent data content that the computer operates to ultimately output the data. In light of Radin’s disclosure, we are not persuaded that a computer which receives, stores, analyses, provides feedback in association with, and outputs data content is not reasonably and readily understood as utilizing that data. We are cognizant of Quantum’s assertion that (App. Br., pp. 10- 11): Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 20 The ‘242 specification provides several examples of utilization by a computer: “A high quality random number generator is necessary for functions from Monte Carlo-based studies used in computer modeling of the global economy, to cryptography, to parapsychological studies, to marketing research, to lottery Games.” Col. 1, ll. 28-32. We observe that a utilization characterized as “parapsychological studies” is seemingly in accord with the psi premised experiments set forth in Radin. However, even if that comparison is not apt, the claims do not specify or require any particular type of use of utilization. Example uses set forth in the specification do not operate to import limitations into the claims. See Prima Tek II, L.L.C. v. Polypap, S.A.R.L., 318 F.3d 1143, 1148 Fed. Cir. 2003) (“Notwithstanding the fact that the claim language must be examined in light of the written description, limitations may not be read into the claims from the written description.”) We have considered Quantum’s argument with respect to the “utilizing” feature in conjunction with Radin, but, for the above-discussed reasons, we are not persuaded that it is correct. Accordingly, we conclude that Radin discloses a computer “for utilizing” a binary true random sequence of signals as required by claims 14 and 20. (2) The “interface” requirement On review of the record, we discern that the Examiner appears to have relied, in various instances, on Radin, NM 810 RNG, Cohn, Gude, James, and Davis in accounting for the “interface” requirement of claims 14 and 20. Quantum does not challenge the Examiner’s position with respect to Radin, NM 810 RNG, or Cohn, but does dispute that the other above-noted references are correctly viewed as accounting for that feature. Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 21 With respect to Gude, as is noted by Quantum (App. Br., pp. 14-15), the reference sets forth that randomly generated data formed as a “bitstream” are “stored on a data recording medium for later use on a computer.” (Gude, p. 188, ll. 4-6.) Quantum submits that the term “interface” as it appears in claims 14 and 20 indicates a direct connection and that the conveyance of data from an RNG first to a data recording medium then subsequently delivered to a computer does not establish such a connection between the RNG and computer. (App. Br., p. 15.) The Examiner does not appear to disagree with Quantum as to the meaning of “interface” as it is used in the claims, but instead contends that the term “fast access” appearing in Gude’s Figure 1 constitutes disclosure of an interface between an RNG and a computer. (Ans., p. 69.) On this record, we are unable to discern what “fast access” means or what it, if anything, it conveys with respect to a connection or interface between an RNG and a computer. The Examiner does not offer any meaningful explanation justifying why he believes that the term “fast access” establishes the required interface. Accordingly, we are unable to agree with the Examiner in conjunction with Gude’s alleged disclosure of the required interface of claims 14 and 20. With respect to James, and Davis, Quantum does not contend that those references do not disclose a direct connection between a type of RNG and a computer. Rather, the basis of Quantum’s challenge is that the types of RNGs disclosed in those references constitute pseudo RNGs rather than true RNGs. According to Quantum, “an interface between a pseudo-RNG and a computer does not suggest that a true RNG can be similarly interfaced Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 22 with a computer.” (App. Br., p. 22.) Evidently, in conjunction with that argument, Quantum urges that the prior art “teaches away” from such an interface with respect to a true RNG. (Id. at p. 23.) Quantum attempts to substantiate its “teaching away” argument by reference to portions of only a select number of references involved in this appeal, namely; Richter, IBM TDB, Murry, and Gude. (Id. at pp. 23-24.) Quantum takes the position that the portions of those references provide that it was an established practice to isolate true RNGs from other circuitry. Even if that is true, however, Quantum does not meaningfully articulate that such a practice operates to itself “teach away” from other potentially less established practices. A reference does not teach away if it merely expresses a general preference for an alternative invention but does not “criticize, discredit, or otherwise discourage” investigation into an applicant’s claimed invention. DePuy Spine Inc. v. Medtronic Sofamor Danek, 567 F.3d 1314, 1327 (Fed. Cir. 2009) (quoting In re Fulton, 391 F.3d 1195, 1201 (Fed Cir. 2004)). Here, even if the cited references convey that a particular association of a computer and an RNG, which is presumably not tantamount to an “interface” therebetween, is a practice that is established or even preferred, we do not discern that the cited content criticizes, discredits or otherwise discourages inquiry into other practices, such as those including creating an “interface” between the components. Indeed, Quantum itself characterizes the prior art as conveying that establishing electrical connection between a true RNG and a computer “was disfavored and avoided where possible” (App. Br., p. 25.) Thus, Quantum itself is evidently of the view that where Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 23 such connection or interface cannot be avoided, those of ordinary skill in the art would have had the knowledge and competence to establish such an interface when necessary. We also observe in passing that other of the prior art of record in this appeal, such as Radin, clearly establish that skilled artisans knew that “truly random” number generators could be connected to or interfaced with general purpose computers. (Radin, p. 4.) For the foregoing reasons, although we agree that the record does not reasonably convey that Gude discloses the “interface” feature of claims 14 and 20, we do not agree that the other references applied by the Examiner in accounting for that feature are not properly so applied. (3) The “power connection” requirement Based on our review of the record, we discern that the Examiner has relied on each of Radin, NM 810 RNG, and APA as disclosing the “power connection” requirement of claims 14 and 20. Quantum does not appear to dispute the Examiner’s determinations with respect to that requirement in connection with Radin and NM 810 RNG. Quantum, however, does challenge the Examiner’s reliance on APA as accounting for a power connection between a general-purpose and a true RNG. The relevant portion of the ‘242 Patent which is said to constitute admitted prior art, i.e., APA, appears at column 24, line 53 through column 25, line 13. The characterization of that which is admitted in the section of the ‘242 Patent noted above is summarized by the Examiner as follows (Ans, p. 34): APA disclosed that general-purpose computer comprising a personal computer such as IBM PC compatible computer and Apple computer may be used as is it well known in the PC art that the general- Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 24 purpose computer comprising personal computers are capable of interfacing circuits and supplying power to circuits (col. 24 line 53 to col. 25 line 13). Quantum does not dispute that the above-noted portion of the ‘242 Patent constitutes admitted prior art or contend that the Examiner’s assessment of the content of the APA is incorrect. Indeed, Quantum states the following (App. Br., p. 25): The APA cited by the Examiner say only that interfacing and powering generic add-on boards and integrated circuits with a computer were known in the art. Thus, each of the Examiner and Quantum characterize the APA as providing that integrated circuits may be interfaced with and powered by a computer. Rather, the basis of Quantum’s dispute is essentially the same as that which was proffered in connection with the “interface” feature of the claims, i.e., that certain references of record allegedly teach away from providing a power connection between a true RNG and a computer. For essentially the same reasons discussed above with respect to the “interface” requirement, we reject Quantum’s teaching away argument. We are not persuaded that the prior art relied upon by the Examiner in rejecting claims 14 and 20 would not have reasonably conveyed to one with ordinary skill in the art that a true RNG may be powered by a computer via a power connection established between those two components. (4) The “clock signal” requirement Claims 14 and 20 reach require the feature of a “source of a clock signal” as a part of the true random number generator systems set forth in Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 25 those claims. Although the Examiner determined that many of the prior art references relied upon in rejecting claims 14 and 20 expressly set forth the above-quoted clock feature, with respect to two references –NM 810 RNG and Murry – the Examiner takes the position that the feature is inherent. (E.g., Ans. pp. 19, 34.) In particular, with respect to NM 810 RNG, the Examiner states that a source of clock signal is inherent to a “strobe” disclosed in that reference. (Ans., pp. 19, 75.) With respect to Murry, the Examiner maintains that the source of a clock signal is “inherent to the circuit shown in Fig. 1,5 [sic].” (Id. at pp. 34, 76.) As is well settled, inherency may not be established by probabilities or possibilities. MEHL/Biophile International Corp. v. Milgraum, 192 F.3d 1362, 1365 (Fed. Cir. 1999). The prior art must necessarily function in accordance with, or include, the claimed limitations, in order to anticipate. Id. We have considered the Examiner’s inherency position, but do not conclude that the Examiner has sufficiently explained that a source of clock signal is necessarily present. In that regard, we agree with Quantum. (App. Br., pp. 17-20.) Even if a source of clock signal may possibly, or even probably, be a part of the RNG circuits of NM 810 RNG and Murray, that is insufficient to establish inherency. Conclusion – Claims 14 and 20 (3) The Examiner correctly determined that Radin discloses “utilizing” random numbers in association with a general-purpose computer. (4) The Examiner did not correctly determine that Gude discloses an “interface” between a true RNG and a computer. Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 26 (5) The Examiner correctly determined that one with ordinary skill in the art would have appreciated from other involved prior art that a true RNG may be “interfaced” with a computer. (6) The Examiner correctly determined that one with ordinary skill in the art would have appreciated from the involved prior art that a “power connection” may be established between a true RNG and a computer. (7) The Examiner did not correctly determine that a “source of clock signal,” as required by claims 14 and 20, is inherent to the disclosures of Murry and NM 810 RNG. Summary In light of our analysis set forth above, we summarize our decision as follows: Of the twenty-three rejections involved in this appeal we sustain all but the following: The anticipation of claims 22-25 by Richter; The anticipation of claim 14 by NM 810 RNG; The anticipation of claims 22-25 by Gude; The unpatentability of claim 20 over NM 810 RNG and APA; The unpatentability of claim 14 over Murry and APA; The unpatentability of claims 14 and 20 over Gude and APA. C. ORDER Anticipation – 35 U.S.C. § 102(b) The Examiner’s decision to reject: (1) claims 22-25 as anticipated by Richter is reversed; Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 27 (2) claims 14 and 20 as anticipated by Radin is affirmed; (3) claim 14 as anticipated by NM 810 RNG is reversed; and (4) claims 22-25 as anticipated by Gude is reversed; Obviousness – 35 U.S.C. § 103(a) The Examiner’s decision to reject: (5) claim 20 over IBM TBD and Radin is affirmed; (6) claim 20 over IBM TBD, Davis, and APA is affirmed; (7) claim 20 over Schulz, APA, and Radin is affirmed; (8) claim 20 over NM 810 RNG and APA is reversed; (9) claims 14 and 20 over Cohn and APA is affirmed; (10) claim 14 over Murry and APA is reversed; (11) claims 14 and 20 over Porter and Radin is affirmed; (12) claims 14 and 20 over Porter, James, and APA is affirmed; (13) claims 14 and 20 over Porter, Davis, and APA is affirmed; (14) claims 14 and 20 over Gude and APA is reversed; (15) claim 20 over Ogrodski and Radin is affirmed; (16) claim 20 over Ogrodski, James, and APA is affirmed; (17) claim 20 over Ogrodski, Davis, and APA is affirmed; (18) claims 14 and 20 over Brown and Radin is affirmed; (19) claims 14 and 20 over Brown, James, and APA is affirmed; (20) claims 14 and 20 over Brown, Davis, and APA is affirmed; (21) claims 14 and 20 over Reinhardt, James, and Radin is affirmed; (22) claims 14 and 20 over Reinhardt, James, and APA is affirmed; and Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 28 (23) claims 14 and 20 over Reinhardt, Davis, and APA is affirmed. In accordance with 37 C.F.R. § 41.79(a)(1), the “[p]arties to the appeal may file a request for rehearing of the decision within one month of the date of: . . . [t]he original decision of the Board under § 41.77(a).” A request for rehearing must be in compliance with 37 C.F.R. § 41.79(b). Comments in opposition to the request and additional requests for rehearing must be in accordance with 37 C.F.R. § 41.79(c) & (d), respectively. Under 37 C.F.R. § 41.79(e), the times for requesting rehearing under paragraph (a) of this section, for requesting further rehearing under paragraph (d) of this section, and for submitting comments under paragraph (c) of this section may not be extended. An appeal to the United States Court of Appeals for the Federal Circuit under 35 U.S.C. §§ 141-144 and 315 and 37 C.F.R. § 1.983 for an inter partes reexamination proceeding “commenced” on or after November 2, 2002 may not be taken “until all parties' rights to request rehearing have been exhausted, at which time the decision of the Board is final and appealable by any party to the appeal to the Board.” 37 C.F.R. § 41.81. See also MPEP § 2682 (8th ed., Rev. 8, July 2010). AFFRIMED-IN-PART; REVERSED-IN-PART Appeal 2012-006289 Reexamination Control 95/000,351 Patent 7,096,242 29 PATENT OWNER: HEIM, PAYNE & CHORUSH LLP 600 TRAVIS, SUITE 6710 HOUSTON, TX 77002 THIRD-PARTY REQUESTER: SHERMAN & STERLING 801 PENNSYLVANIA AVE., NW SUITE 900 WASHINGTON, DC 20004-2634 Copy with citationCopy as parenthetical citation