~
`a. .........
`,0'\
`~~--~
`:;:,<"'a~
`c:;:) ~ U.S. UTILITY Patent Application
`c-.....
`'
`lftc:;:) ~
`c.-t._.i1h~~~~~~~~~~~~~~~··~····~·--~-~··~--~--~·~;-~-~···-~--~-~--~--~-~~----~--------~--~--,
`- I
`~~
`APPL NUM
`FILING DATE CLASS SUBCLASS GAU
`EXAMINER
`...7'
`~ '\~/1
`A.
`1212112001 ~ r-r ~ vv/r- (j.(( :JltC·f /_/~-
`.·. (/
`I
`Woolfork C.;
`
`10027391
`
`**APPLICANTS:
`
`PATENT NUMBER and
`ISSUE DATE
`
`I
`
`**CONTINUING DATA VERIFIED:
`
`1.
`
`I
`
`•I I" r-c;·~IGN APPLICATIONS VERIFIED:
`
`Cl yes Cl no
`Foreigr. priority claimed
`35 USC 119 conditions met
`Cl yes Cl no
`Verified and Acknowledged Examiners's 'intials,
`1---·--·
`TITLE : Wireless digital audio system
`
`RESCIND CJ
`
`I
`ft-\TTORNEY DOCKET NO
`
`U.S.DEPT. OF COMM./PAT.& TM-PT0-436L(Rev. 12-94)
`
`NOTICE OF ALLOWANCE MAILED
`
`Assistant Examiner
`
`Total Claims
`
`CLAIMS ALLOWED
`
`I Print Claim for
`
`O.G
`
`ISSUE FEE
`Amount Due
`Date Paid
`
`DRAWING
`SheetiDrwg. Flga.Drwg.
`
`Print Fig.
`
`Primary Examiner
`
`D TERMINAL
`
`DISCLAMER
`
`. . ,
`
`4
`
`. . . . .
`
`•
`
`.
`
`Application Examiner
`
`PREPARED FOR ISSUE
`WARNING: The infonnation disclosed herein may be restricted.
`Unauthorized disclosure may be prohibited by the United States Code Title 35,
`Sections 122, 181 and 368, Possession outside the U.S. Patent &Trademark
`Office is restricted to authorized employees and contractors only.
`FILED WITH: D DISK (CRF)
`0:· CD-ROM
`
`(Attached In pocket on right Inside flap)
`
`.
`
`- -.;~
`
`~ -~~-
`
`

`

`r.·
`
`' .
`
`PATENT APPLICATION SERIAL NO . - - - - - - - -
`
`(
`
`U.S. DEPARTMENT OF COMMERCE
`PATENT AND TRADEMARK OFFICE
`FEE RECORD SHEET
`.
`
`1213112001 VABDELR1 00000018 10027391
`01 FC:201
`370.00 IP
`
`PT0-1556
`(5/87)
`
`'U.S. GPO: 2000-468·987/39595
`
`....
`
`'
`
`

`

`·.
`
`Page 1 of 1
`
`UNITED STATES PATENT AND TRADE:MARK OFFICE
`
`COMMISSIONER FOR PATENTS
`UNITED STATES PATENT AND TRADEMARK OFFICE
`WASHINGlON, D.C. 202.31
`www.uspto.gov
`
`CONFIRMATION NO. 1123
`
`CLASS
`375
`
`GROUP ART UNIT
`2631
`
`ATIORNEY
`DOCKET NO.
`
`llmllllm llllllllllll~lllllll ~111~1111n 111111~1111m ~ 101
`
`Bib Data Sheet
`
`SERIAL NUMBER
`10/027,391
`
`FILING DATE
`12/21/2001
`RULE
`
`-
`
`!APPLICANTS
`C. Earl Woolfork, Altadena, CA;
`
`**CONTINUING DATA"""""""""""""""*"""""""""
`
`"'" FOREIGN APPLICATIONS *"*""*"""**"u""""""
`
`IF REQUIRED, FOREIGN FILING LICENSE GRANTED** SMALL ENTITY**
`** 01/28/2002
`
`SHEETS
`STATE OR
`COUNTRY DRAWING
`CA
`2
`
`TOTAL
`CLAIMS
`7
`
`INDEPENDENT
`CLAIMS
`3
`
`Examiner's Signature
`
`CJ yes CJ no
`Foreign Priority claimed
`35 USC 119 (a-d) conditions CJ yes CJ no CJ Met after
`met
`Allowance
`Verified and
`~knowledged
`!ADDRESS
`Dennis W. Beech
`LAW OFFICES OF DENNIS W. BEECH
`Suite C-2
`19900 Beach Blvd.
`Huntington BeClch , CA 92648
`
`Initials
`
`lfiTLE
`
`Wireless digital audio system
`
`'
`
`FILING FEE FEES: Authority has been given in Paper
`to charge/credit DEPOSIT ACCOUNT
`RECEIVED No.
`No.
`fqr following:
`370
`'
`
`jCJ All Fees
`jCJ 1.16 Fees (Filing)
`Cl 1 .17 Fees ( Processing Ext. of
`time)
`jCJ 1.18Fees(lssue)
`ICJ Other
`ICJ Credit
`
`I
`I
`
`I
`I
`I
`
`

`

`Law Offices of
`DENNIS W. BEECH
`
`RESPOND TO: HUNTINGTON BEACH
`
`Building - Newland Center
`Blvd., Suite C-2
`.
`· Huntmgton Beach, CA 92648
`BUS: (714) 378-0212
`FAX: (714) 378-0262
`
`December 20, 2001
`
`Meridien Building
`1007 West Avenue M-14, Suite C-10
`Palmdale, California 93551
`BUS: (805) 273-0503
`FAX: (714) 378-0262
`
`I' EL870683042US
`
`BOX: PATENT APPLICATION
`Assistant Commissioner for Patents
`Washington, DC 20231
`
`Dear Commissioner:
`
`Enclosed is a patent application for:
`
`. '
`
`'·
`
`C, EARL WOOLFORK
`
`WIRELESS DIGITAL AUDIO SYSTEM
`
`~·.\Applicant:
`~t:J
`t1Application:
`~1J
`"'4This application comprises of:
`.
`~i.1
`r1iJ 1 0 pages of specifit.ations
`~.£: 2 pages of drawings
`~~ Combination Declaration & Power of Attorney
`~~ • .l: Small Entity Declaration
`![;~Proof of Mailing
`g;J Self addressed postcard
`~,,;1, A check in the amount of $370.00
`R;;y
`l!,,~, This amount. is based on:
`
`7 claims and 3 independent claims
`0 claims in excess of twenty ($9.00)
`0 independent claims in excess of three ( $42.00)
`TOTAL FILING FEE
`
`$370.00
`.0.00
`0.00
`$370.00
`
`If you have any questions, please do not hesita~e to contact me.
`
`fS:rely,_ ~
`
`DENNIS W. BEECH
`Reg. No.: 35443
`
`DWB/ab
`Enclosures
`
`

`

`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`In regards to application of:
`
`Applicant:
`
`C, EARL WOOLFORK
`
`Application:
`
`WIRELESS DIGITAL AUDIO SYSTEM
`
`BOX: PATENT APPLICATION
`Assistant Commissioner for Patents
`Washington, DC 20231
`
`EXPRESS MAIL CERTIFICATE MAILING UNDER 37 CFR § 1 .1 0
`
`"Express Mail" label number: EL 870683042
`
`Date of Deposit: December 20, 2001
`
`I hereby certify that the following attached correspondence comprising:
`
`Ill pages of specifications
`2 pages of drawings
`Combination Declaration & Power of Attorney
`Small Entity Declaration
`Self addressed postcard
`!;.. check in the amount of $370.00
`
`!),:l:
`
`!h&
`h:: L.i
`~U
`~,,;,
`Q;;J
`il•*
`
`is being deposited with the United States Postal Service "Express Mail Post Office to
`Addressee" service uoder 37 CFR § 1.10 on the date indicated above and is
`addressed to:
`
`BOX: PATENT APPLICATION
`Assistant Commissioner for Patents
`Washington, DC 20231
`
`Dated: /c:2-,20-&/
`
`~'
`
`ANNEROSE BEECH
`
`

`

`WIRELESS DIGITAL AUDIO SYSTEM
`
`BACKGROUND OF THE INVENTION
`
`5
`
`[0001]
`
`This invention relates to audio player devices and more particularly
`
`to systems that include headphone listening devices. The new audio system
`
`uses existing audio player device headphone jacks to connect a transmitter for
`
`wireless transmission of a signal to a receiving headphone.
`
`[0002]
`
`Use of audio headphones with audio player devices such as radio,
`
`10
`
`tape players, CD players, computers, television audio and the like have been in
`
`use for may years. Such use includes the portable player systems such as
`
`cassette tape players that may be used during exercising as for example
`
`running.
`
`These systems usualiy incorporate an audio source having_ a
`
`headphone jack to which a headphone is connected by wire and connector.
`
`15
`
`[0003]
`
`There are also known wireless headphones that may receive radio
`
`l!
`
`transmissions. Also, audio player devices have been modified to allow wireless
`
`communication with a headphone receiver. However, these systems do not
`
`allow use of a simple plug in transmitter for connection to the audio player
`
`device jack for wireless transmission between space separated devices.
`
`20
`
`[,0004]
`
`As can be seen, there is a need for a simple connection system for
`
`existing audio player devices to allow wireless transmission to a headphone
`
`receiver.
`
`25
`
`,,
`SUMMARY OF THE INVENTION
`
`[0005]
`
`The present invention is directed to wireless digital audio systems
`
`for transmission of a signal from an audio player device to a headphone. ;An
`
`audio transmitter may include a headphone plug in communication with: an
`
`analog low pass filter wherein the headphone plug may be connectable to a
`
`·~.
`
`\
`
`30
`
`headphone jack of an audio source. The low pass filter output signal may be in
`
`

`

`communication with an AID converter whose output may be in communication
`
`with a digital low pass filter that outputs a signal to an encoder. The encoder
`
`output may be in communication with a channel encoder the output of which
`
`may be in communication with a block interleaver. The block interleaver output
`
`5 may be in communication with a modulator the output of which may be summed
`
`with a transmitter code generator output in a summating element. The
`
`modulator may be a 64 Ary modulator. The summating element output may be
`
`in communication with a differential phase shift key transmitter the output of
`
`which may be
`
`in communication with a transmit antenna
`
`for wireless
`
`10
`
`transmission of a signal.. The transmitted signal may be transmitted to an audio
`
`receiver for processing to power a headphone speaker.
`
`[0006]
`
`These and other features, aspects and advantages of the present
`
`invention will become better understood with reference to the following
`
`drawings, description and claims.
`
`15
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`' .
`[0007]
`
`Figure 1 illustrates a schematic diagram representation of the
`
`wireless digital audio system;
`
`·20
`
`[0008]
`
`Figure 2
`
`illustrates a
`
`functional block diagram of the audio
`
`transmitter according to an embodiment of the invention;
`
`[0009]
`
`·Figure 3 illustrates a functional block diagram of the audio receiver
`
`according to an embodiment of the invention;
`-.....
`
`25
`
`DETAILED DESCRIPTION
`
`[0010]
`
`The following detailed description is the best currently contemplated
`
`modes for carrying out the invention. The description is not to be taken ijl a
`
`limiting sense, but is made merely for the purpose of illustrating the geni:lral
`
`30
`
`principles of the invention.
`
`-~
`\ .,
`
`-2-
`
`

`

`[0011]
`
`Referring to Figure 1, a wireless digital audio system 1 0 may include
`
`an audio transmitter 20 connected to an audio player or audio source 80. The
`
`audio transmitter 20 may be connected to the audio source 80 headphone jack
`
`82 using a headphone plug 22. The audio transmitter 20 may have a
`
`5
`
`transmitting antenna 24 that may be omni-directional for transmitting an
`
`electromagnetic signal to a receiving antenna 52 of an audio receiver 50 that
`
`may be a headphone receiver. The audio receiver 50 may have headphone
`
`speakers 54 in headphones 55 for listening to the audio signal. The audio
`
`system 1 0 may digitize the audio signal and may transmit an electromagnetic
`
`10
`
`signal at 2.4 GHz using approximately 100 milliwatts or less of power.
`
`[0012]
`
`Referring to Figure 2, an audio transmitter 20 may receive an audio
`
`signal from an audio source 80. The audio transmitter 20 may be a compact
`
`device that· may be connected to the audio source 80 to remain therewith for
`
`transmitting a signal to an audio receiver. An al,!dio source 80 normally
`
`15
`
`provides an analog output signal in the approximate range of 20 Hz to 20 kHz.
`
`This signal may then be processed through an analog low pass filter 30 to then
`
`be digitized by a 4 bit analog-to-digital (AID) converter 32. After digital
`
`conversion of the analog audio signal, the digital signal may be processed by a
`
`digital low pass filter 34 to reduce unwanted out of band noise that may have
`
`20
`
`been produced by the AID converter 32.
`
`[0.013]
`
`An encoder 36 may be used to reduce intersymbol interference (lSI)
`
`by using a-transform code to encode the digital signal. The reduction of lSI
`
`may lower the pr?bability of a signal detection error in the audio receiver. The
`.
`'\
`digital signal may next be processed by a channel encoder 38 and a block
`·,
`interleaver 40 to produce· encoded redundancies in the transmitted signal to
`
`25
`
`reduce errors that may occur during transmission.
`
`[0014]
`
`Modulation of the digital signal may be performed using direct
`
`sequence spread spectrum communication technology. A 64-Ary modulatorA2
`
`may be used for summation at summation element 46 with a transmitter code
`
`30
`
`generator 44 signal to produce a high symbol rate, and a unique codeword that
`
`\~.
`
`\
`
`-3-
`
`

`

`spreads the signal spectrum. The output of the summation element 46 may
`
`then be communicated to a differential phase shift key (DPSK) transmitter 48
`
`that modulates the digital signal to be transmitted by an omni-directional
`
`transmitting antenna 24 at approximately 2.4 GHz. The transmit power may be
`
`5
`
`limited to 1 00 milliwatts.
`
`[0015]
`
`The transmitted signal from transmit antenna 24 may be received by
`
`receiving antenna 52 and communicated to a wideband band pass filter (BPF)
`
`54. The received spread spectrum signal may then be communicated to a 2.4
`
`GHz direct conversion receiver 56. The direct conversion receiver 56 may
`
`1 0
`
`provide a method for down converting the received signal while utilizing timing
`
`and synchronization to capture the correct bit sequence embedded in the
`
`received'spread spectrum signal. The audio receiver 50 may utilize fuzzy logic
`
`(or continupus logic) to optimize performance of the audio receiver 50.
`
`[0016]
`
`The down converted output signal of the direct conversion receiver
`
`15
`
`56 may be summed in receiver summing element 58 with a receiver code
`
`generator 60 signal. The receiver code generator 60 may contain the same
`
`unique code word that was transmitted by the audio transmitter 20 specific to a
`
`particular a user. Other code words from wireless digital audio systems 1 0 may
`
`appear as noise to a particular audio receiver 50. This may also be true for
`
`20
`
`other device transmitted signals operating in the wireless digital audio system
`
`1~ spectrum. This code division multiple access (COMA) may be used to
`
`provide each user independent operation.
`
`[0017]
`
`The resulting summed digital signal
`
`from receiving summary
`
`element 58 may !Je, processed by a~ 64-Ary demodulator 62 to demodulate the
`
`25
`
`signal elements modulated in the audio transmitter 20. A block de-interleaver
`
`64 may then decode· the bits of ·the digital signal encoded in the block
`
`interleaver 40. Following such, a Viterbi decoder 66 may be used to decode
`
`the bits encoded by the channel· encoder 38 in the audio transmitter 20. · A
`
`source decoder 68 may further decode the coding applied by the encoder 36.
`
`30
`
`The resultant processed digital signal may thereby be condition to represent the
`
`-4-
`
`\. \
`
`

`

`original signal processed and transmitted by the audio transmitter 20.
`
`[0018]
`
`The next step may process the digital signal to return the signal to
`
`analog or base band format for use in powering a speaker 54. A digital-to(cid:173)
`
`analog converter 70 (DAC) may be used to transform the digital signal to an
`
`5
`
`analog audio signal. An analog low pass filter 72 may be used to filter the
`
`analog audio signal to pass a signal in the approximate 20 Hz to 20kHz
`
`frequency range and filter other frequencies. The analog audio signal may then
`
`be processed by a power amplifier 74 that may be optimized for powering a
`
`headphone speaker 54 to optimize a high quality, low distortion signal for
`
`1 0
`
`hearing by a user wearing the headphones 55.
`
`[0019]
`
`While the invention has been particularly shown and described with
`
`respect to the illustrated and preferred embodiments thereof, it will be understood_ .
`
`by those skilled in the art that the foregoing and other changes in form and details
`
`may be made therein without departing from the spirit and scope of the invention.
`
`15
`
`'
`
`-5-
`
`" .
`
`

`

`CLAIMS
`
`I claim:
`
`1.
`
`An audio tran
`
`itter for wireless transmission of a signal from an
`
`audio source to a headphon
`
`g in communication with an analog low pass filter
`
`and connectable to a head ph ne jack of an audio source;
`
`said
`
`low pass filter output
`
`in communication with an AID
`
`converter;
`
`said AID convert r in communication with a digital low pass filter,
`
`the output of which is in commu ication with an encoder;
`
`t in communication with a channel encoder the ·
`
`output of which is in communicati n with a block interleaver;
`
`said block interleav r output in communication with a modulator
`
`the output of which is summed
`
`"th a transmitter code generator output in a
`
`summing element; and
`
`phase
`
`transmit antenna for wireless tra s
`'·
`
`o tput in ~p111munication with a differential
`
`t of which is in communication with a
`
`2.
`
`The audio transmitter a
`
`in claim 1 wherein said signal is
`
`transmitted to an· audio receiver of said h
`
`a receivinQ'antenna in com unication with a wideband band pass
`
`filter;
`
`said wideband band pass fil er in communication with a direct
`
`conversion receiver the output of which s summed with a receiver code
`
`generator in a receiver summing element;
`
`said
`
`receiver summing elem nt
`
`in communication with a
`
`demodulator the output of which is
`
`munication with a block de-
`
`-6-
`
`

`

`interleaver;
`
`\ \
`
`\
`
`said
`
`ock de-interleaver output in communication with a Viterbi
`
`decQder the output o which is in communication with a source decoder;
`
`decoder output
`
`in communication with a D/A
`
`converter the output
`
`ich is in communication with an analog low pass filter;
`
`and
`
`said analog lo pass filter output in communication with a power
`
`amplifi.er the output of which i in communication with a headphone speaker.
`
`3.
`
`The audi
`
`transmitter as in claim 1 wherein said modulator is a
`
`64-Ary modulator.
`
`4.
`
`mitter as in claim 2 wherein said demodulator is a
`
`64 Ary demodulator.
`
`5.
`
`An audio receiver for packaging in a headphone comprising:
`
`a receiving antenna in communication with a wideband band pass
`
`filter;
`
`said wideband band pass filter in communication with a direct
`
`conversion receiver the output of which is summed with a receiver code
`
`generator in a receiver summing element;
`
`said
`
`receiver summing element
`
`in communication with a
`
`demodulator the: output of which is in communication with a block de-
`"
`said block de-interleaver output in communication with a Viterbi
`
`interleaver;
`
`decoder the output of which is in communication with a source decoder;
`
`said source decoder output
`
`in communication with a D/A
`
`converter the output of which is in communication with an analog low pass firter;
`
`and
`
`said analog low pass filter output in communication with a power
`
`-7-
`
`

`

`~.~
`~~~j
`tj
`~nJ
`. ~\:.j
`
`l:
`
`amplifier the output of which is in communication with a headphone speaker.
`
`6.
`
`The audio receiver as in claim 5 wherein said demodulator is a 64
`
`Ary demodulator.
`
`7.
`
`A wireless digital audio system for wireless transmission of a
`
`signal from an audio source to a headphone comprising:
`
`a headphone plug in communication with an analog low pass filter
`
`and connectable to a headphone jack of an audio source;
`
`said
`
`low pass filter output in communication with an AID
`
`converter;
`
`said AID converter in communication with a digital low pass filter,
`
`the output of which is in communication with an encoder;
`
`said encoder output in communication with a channel encoder the
`output of which is in communication with a block interleaver;
`said block interleaver output in communication with a modulator
`
`the output of which is summed with a transmitter code generator output in a
`
`summing element;
`
`said summing element output in communication with a differential
`
`phc:1se shift key transmitter the output of which is in communication with a
`
`transmit antenna for wireless transmission of a signal to a receiving antenna;
`
`pass filter;
`
`sai~ receiving antenna in communication with a wideband band
`"
`'
`said wideba.nd band pass filter in communication with a direct
`
`conversion receiver the output of 'which is summed with a receiver code
`
`generator in a receiver summing element; .
`
`said
`
`receiver summing element
`
`in communication with: a
`
`demodulator the output of which is in communication with a block :de(cid:173)
`
`interleaver;
`
`said block de-interleaver output in communication with a Viterbi
`
`-8-
`
`

`

`decoder the output of which is in communication with a source decoder;
`
`said source decoder output
`
`in communication with a D/A
`
`converter the output of which is in communication with an analog low pass filter;
`
`and
`
`said. analog low pass filter output in communication with a power
`
`amplifier the output of which is in communication with a headphone speaker.
`
`~.l,
`
`n:j
`
`if"'i
`1;:;:,~
`in!
`
`:J•C::
`
`~. :
`~:I;~
`
`!ttJ
`~fj
`·~~=~
`
`j;
`~~=~
`~nJ
`if!~j
`~:~
`~~:~
`~~~~
`
`'
`
`'· .
`
`-9-
`
`

`

`"' I
`
`WIRELESS DIGITAL AUDIO SYSTEM
`
`ABSTRACT OF THE DISCLOSURE
`
`5
`
`[0020]
`
`The present invention is directed to wireless digital audio systems
`
`for transmission of a signal from an audio player device to a head"t:>hone. An
`
`audio transmitter may include a headphone plug in communication with an
`
`analog low pass filter wherein the headphone plug may be connectable to a
`
`headphone jack of Pn audio source. The low pass filter output signal may be in
`
`10
`
`communication with an NO converter whose output may be in communication
`
`with a digital low pass filter that outputs a signal to an encoder. The encoder
`
`output may be in communication with a channel encoder the output of which .
`
`may be in communication with a block interleaver. The block interleaver output
`
`may.be in communication with a modulator the output of which may be summed
`
`15 with a transmitter code generator output in a summating element. The
`
`modulator may be a 64 Ary modulator. The summating element output may be
`
`in communication with a differential phase shift key transmitter the output of
`
`which may be
`
`in communication with a transmit antenna
`
`for wireless
`
`transmission of a signal. The transmitted signal may be transmitted to an audio
`
`20
`
`receiver for processing to power a headphone speaker.
`
`It is emphasized that
`
`this abstract is provided to comply with the rules requiring an abstract that will
`
`allow a searcher_ or other reader to quickly ascertain the subject matter of the
`"
`It is submitted with the understanding that it will not be
`technical disclosure:
`'
`used to interpret or limit the scope or meaning of the claims.
`
`-10-
`
`

`

`COMBINATION DECLARATION AND POWER OF ATTORNEY
`
`As the below named inventor, I hereby declare that this declaration is an
`original.
`
`INVENTORSHIP IDENTIFICATION
`
`My residence, post office address and citizenship are as stated below next to
`my name, I believe I am the original, first and sole inventor of the subject matter
`which is claimed and for which a patent is sought on the invention entitled:
`WIRELESS DIGITAL AUDIO SYSTEM.
`
`SPECIFICATION IDENTIFICATION
`
`The specification is attached hereto.
`
`ACKNOWLEDGEMENT OF REVIEW OF PAPERS AND DUTY OF CANDOR-·
`
`I hereby state that I have reviewed and understand the contents of the above
`identified specification, including the claims, as amended by any amendment referred
`to above.
`I acknowledge the duty to disclose information which is material to the
`examination of this application
`in accordance with Title 37, Code of Federal
`Regulations, Section 1 .56(a).
`
`PRIORITY CLAIM
`
`I -)lereby claim foreign priority benefits under Title 35, United States Code,
`Section n 9 of any foreign applications(s) for patent or inventor's certificate or of any
`PCT international application(s) designating at least one country other than the United
`States of America
`listed below and have· also
`identified below any
`foreign
`for patent or
`inventor's certificate or any PCT
`international
`application(s)
`application(s) designating at, least one country other than the United States of
`America filed by me on the same subject matter having a filing date before that of
`the application(s) of which priority is claimed.
`
`No such applications have been filed.
`
`Dated:("),/?- c J ~ (
`{
`
`'
`
`/~ c:Et\RLW
`
`LOR
`
`-~
`\
`
`

`

`POWER OF ATTORNEY
`
`As the named inventor', I hereby appoint the following attorney to prosecute
`this application and transact all business in the Patent and Trademark Office and as
`agent or common representative to act on behalf of the applicant before the
`competent International authorities.
`
`Dennis W. Beech, Reg. No. 35,443
`LAW OFFICES OF DENNIS W. BEECH
`19900 Beach Blvd., Suite C-2
`Huntington Beach, CA 92648
`(714} 378-0212
`
`DECLARATION
`
`I hereby declare that all statements made herein of my own knowledge are
`true and that all statements made on information and. belief are believed to be true;
`and further that these statements were made with the knowledge that willful false
`statements ·and the like so made are punishable by fine or imprisonment, or both
`under Section 1 001 of Title 1 8 of the United States code and that such willful false
`statement may jeopardize the validity of the application or any patent issue thereon.
`
`Country of Citizenship: United States of America
`
`Residence:
`
`2{370 No. Lincoln Ave., Altadena, CA 91001 ·
`
`Post Office address: Same as above
`"
`.
`'
`Full name of sole or first inventor: ·C. Earl Woolfork
`
`Inventor's signature:
`
`\.
`'
`
`

`

`·-.,
`
`·~·
`
`C. Earl Woolfork
`Applicant or Patentee:
`Serial or Patent No.: ___________ _.:_ ___ _
`Filed or Issued : -----------------------
`For:
`WIRELESS DIGITL AUDIO SYSTEM
`
`VERIFIED STATEMENT (DECLARATION) CLAIMING SMALL ENTITY
`STATUS (37 CFR 1.9 (f) AND 1.27 (b))--INDEPENDENT INVENTOR
`
`As the below named inventor, I hereby declare that I qualify as an independent
`inventor as defined in 37 CFR ·1 .9{c) for purposes of payihg reduced fees under
`{a)· and {b) of Title 35, United States Code, to Patent and Trademark
`Section 41
`Office with regard to the invention entitled WIRELESS DIGITAL AUDIO SYSTEM
`described in the specification filed herewith.
`
`I have not assigned, granted, conveyed or licensed and I am under no obligation
`under contract or law to assign, grant, convey or license, any rights in the invention
`to any person who could not be classified as an independent inventor under 37 CFR
`1 .9{c) if that p.erson had made the invention, or to any concern which would not
`. qualify as a small business conc.ern under 37 CFR 1 .9{d) or a nonprofit organization
`under .37 CFR 1 .9{e).
`
`Each person,· concern or organization to which I have cal:?SJgned, granted, conveyed, or
`license or are under an oblig.ation under contract or law to assign, grant, convey, or
`license any rights in the invention is listed below:
`No such person.
`
`1i
`
`I acknowledge the duty to file, in this application or patent, notification of any change
`in status resulting in loss of entitlement to small entity status prior to paying or at the
`time of paying, the earliest of the issue fee or any maintenance fee due after the date
`on which status as a small entity is no longer appropriate. {37 CFR 1.28{b)).
`
`I hereby,.declare that all statements made herein of my own knowledge are true and
`that all statements made on information and belief are believed to be true; and further
`that these statements were made with the knowledge that willful false statements
`and the like so made are punishable by fine or imprisonment, or both, under Section
`1001 of Title 18 of the United States Code, and that such willful false statements
`m?IY jeopardize. the validity af the application, and patent issuing thereon, or any
`patent to which this verified statement is directed.
`
`'· .
`
`

`

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`SONY EXHIBIT 1003 — 0020
`
`

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`
`SONY EXHIBIT 1003 — 0022
`
`

`

`IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
`
`Applicant : C. Earl Woodfork
`
`Serial No.:
`
`10/027,391
`
`)
`) Art Unit: 2631
`)
`) Examiner: Unknown
`)
`)
`)
`)
`
`Filed:
`
`For:
`
`12-21-2001
`
`Wireless Digital Audio System
`
`RECEIVED
`JUL (0 1 m1lll.
`INFORMATION DISCLOSURE STATEMENT
`[echnology Center 2600
`UNDER 37 CFR SECTION 1 .56
`
`Assistant Commissioner for Patents
`Washington, DC 20231
`
`Dear Commissioner:
`
`Pursuant to 37 CFR Section 1.56, Applicant hereby advises that during the
`
`evaluation of the subject matter of the above-identified patent application, the
`
`references listed belo-~ were brought to the attention of Applicant's attorney. No
`
`representation. is made that the references listed below legally constitute prior art, or
`
`that more relevant references are not available. Copies of the references, and copies
`
`of information for Form PTO 1449 are attach~d herewith.
`
`The accompanying references disclose various wireless digital audio systems.
`
`'
`
`- 1 -
`
`

`

`U.S. Patent No. 6,212,282
`U.S. Patent No. 6,118,882
`U.S. Patent No. 6,045,224
`U.S. Patent No. 4,845,751
`
`U.S. Patent No. 5,946,343
`U.S. Patent No. 5,832,024
`U.S. Patent No. 5,887,006
`
`The relevance of these patents is that they are related to wireless digital audio
`
`systems. Notification from the Examiner regarding consideration of these references
`
`is respectfully requested.
`
`Dated: G._ 2-- Z.- 0 2-
`
`Respectfully submitted,
`
`DENNIS W. BEECH
`Reg. No.: 35443
`
`CERTIFICATE OF MAILING
`
`I hereby certify that this notice and the required additional fee are being deposited with the United States Postal Service with
`
`sufficient postage for first class mail in an envelope addressed to Assistant Commissioner for Patents, Washington, D.C. 20231
`
`on the date indicated below.
`
`Print Name: Gv'.ME"RarC: ffccC!-/ Signature:~~~ d~~
`ct5 -.:::2 z ...-cz_
`
`Date:
`
`- 2 -
`
`\,
`"\•
`\
`
`

`

`FORM PT0-1449 (Modified)
`
`A TTY. DOCKET NO.
`
`LIST OF PATENTS AND PUBLICATION.~th'7j~ None
`l 0 ~
`APPLICANT:
`APPLICANT'S INFORMATION DIS
`•
`'- ~ y~
`STATEMENT
`tO
`1
`~
`'
`'\,
`(Use several sheets If necess~ ~ , )
`"
`
`C. Earl Woolfork
`FILING DATE
`
`:947Em"-~
`U.S. PATENT DOCUMENTS
`
`12-21-2001
`
`NAME
`DATE
`DOCUMENT NUMBER
`8 2 2001 MERSHON
`6 2 1 2 2
`6 1 1 8 8 8 2 2000 HAYNES
`6 0 4 5 2 2 4 2000 KALLENBACH
`5
`1 1989 SCHWAB
`4 8 4 5 7
`5 9 4 6 3 4 3 1999 SCHOTZ
`4 1998 SCHOTZ
`5 8 3 2 0 2
`1999 NAKAGAWA
`5 8 8 7 0 0 6
`
`REFERENCE DESIGNATION
`EXAMINER
`INITIAL
`tM
`8M
`EM
`f)Vt
`7M
`EM
`e...M
`
`AA
`AB
`AC
`AD
`AE
`AF
`AG
`AH
`AI
`AJ
`AK
`
`SERIAL NO.
`
`10/027,391
`
`GROUP
`
`2631
`
`FILING DATE
`IF APPROPRIATE
`
`CLASS
`381
`381
`351
`381
`375
`
`SUBCLASS
`77
`374
`158
`25
`200
`
`375·r ,,-.P;tQ,... " tr-r-..
`381 ~r 11 :.-t.s.~ 1::. ~Vt::LJ
`"
`"""'"""'
`"UL v fl. UJ~
`
`...... of_
`1"\/'\1'11'1
`L.Jtl ~illiiUIU.YY I ~~~~~~~
`
`." •·:···.J ~ .. . -.
`
`FOREIGN PATENT DOCUMENTS
`
`DOCUMENT NUMBER
`
`DATE
`
`COUNTRY
`
`CLASS
`
`SUBCLASS
`
`TRANSLATION
`YES
`NO
`
`AL
`AM
`AN
`AO
`AP
`
`AR
`
`AS
`
`'
`
`OTHER
`
`ART (Including Author, Title, Date, Pertinent Pages, Etc.)
`
`AT
`EXAMINER
`
`'\
`
`~YWC~
`
`DATE CONSIDERED
`
`o (tz/oL
`
`EXAMINER: Initial if reference considered, whether or not citation is in conformance with MPEP 609;
`Draw line through citation if not in conformance and not considered. Include copy of this form with next
`communication to applicant.
`
`(Information Disclosure Statement- Section 9 PT0-1449 (Modified [6-1)- Page 1 of 1 )
`
`LAW OFFICES
`DENNIS W. BEECH
`19900 Beach Blvd., Suite C-2
`Huntington Beach, CA 92648
`
`LAW OFFICES
`DENNIS W. BEECH
`1007WestAvenue M-14, Suite C
`Palmdale,