GB1513872A - Signal processing apparatus - Google Patents

Signal processing apparatus

Info

Publication number
GB1513872A
GB1513872A GB19441/75A GB1944175A GB1513872A GB 1513872 A GB1513872 A GB 1513872A GB 19441/75 A GB19441/75 A GB 19441/75A GB 1944175 A GB1944175 A GB 1944175A GB 1513872 A GB1513872 A GB 1513872A
Authority
GB
United Kingdom
Prior art keywords
band
waves
stepped
track
transducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB19441/75A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unisys Corp
Original Assignee
Sperry Rand Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1513872A publication Critical patent/GB1513872A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/08—Arrangements for combining channels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • H03H9/02771—Reflector banks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/72—Networks using surface acoustic waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
GB19441/75A 1974-05-08 1975-05-08 Signal processing apparatus Expired GB1513872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US468126A US3898592A (en) 1974-05-08 1974-05-08 Acoustic surface wave signal processors

Publications (1)

Publication Number Publication Date
GB1513872A true GB1513872A (en) 1978-06-14

Family

ID=23858529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19441/75A Expired GB1513872A (en) 1974-05-08 1975-05-08 Signal processing apparatus

Country Status (6)

Country Link
US (1) US3898592A (https=)
JP (1) JPS50156345A (https=)
DE (1) DE2520057A1 (https=)
FR (1) FR2270719B1 (https=)
GB (1) GB1513872A (https=)
IT (1) IT1037956B (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168215A (en) * 1984-12-10 1986-06-11 Secr Defence Improvements in or relating to multiplexing and demultiplexing systems

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1469084A (en) * 1975-05-20 1977-03-30 Standard Telephones Cables Ltd Surface acoustic wave delay lines
US4038614A (en) * 1975-06-16 1977-07-26 Hughes Aircraft Company Fractional efficiency coupler
US4079342A (en) * 1976-09-15 1978-03-14 Sperry Rand Corporation Fanned multistrip coupler filters
US5084687A (en) * 1979-12-03 1992-01-28 Westinghouse Electric Corp. Surface acoustic wave encoder/decoder
US4369390A (en) * 1981-01-30 1983-01-18 Texas Instruments Incorporated Symmetric beam width compression multistrip coupler
US4422057A (en) * 1982-04-22 1983-12-20 Zenith Radio Corporation Surface wave filter with reduced substrate size
US4609891A (en) * 1985-10-16 1986-09-02 Sperry Corporation Staggered SAW resonator for differential detection
US4764701A (en) * 1986-12-30 1988-08-16 Zenith Electronics Corporation Multichannel surface acoustic wave encoder/decoder
US4926146A (en) * 1988-05-09 1990-05-15 Trw Inc. Parallel-to-serial signal processor using surface acoustic waves
US6107910A (en) 1996-11-29 2000-08-22 X-Cyte, Inc. Dual mode transmitter/receiver and decoder for RF transponder tags
US6114971A (en) * 1997-08-18 2000-09-05 X-Cyte, Inc. Frequency hopping spread spectrum passive acoustic wave identification device
US6208062B1 (en) 1997-08-18 2001-03-27 X-Cyte, Inc. Surface acoustic wave transponder configuration
US5986382A (en) 1997-08-18 1999-11-16 X-Cyte, Inc. Surface acoustic wave transponder configuration
US6060815A (en) * 1997-08-18 2000-05-09 X-Cyte, Inc. Frequency mixing passive transponder
US6633226B1 (en) 1997-08-18 2003-10-14 X-Cyte, Inc. Frequency hopping spread spectrum passive acoustic wave identification device
US5929724A (en) * 1998-07-28 1999-07-27 Com Dev Ltd. Low loss saw filters with non-sequential coupling and method of operation thereof
US6259991B1 (en) 1999-02-10 2001-07-10 X-Cyte Inc. Environmental location system
US8452254B2 (en) * 2010-08-20 2013-05-28 Raytheon Company Selecting and routing sub-signals from a common signal path
KR101711204B1 (ko) * 2010-10-29 2017-03-13 삼성전자주식회사 단일입력 다중출력 표면탄성파 디바이스
US10783223B2 (en) * 2017-10-12 2020-09-22 Pacesetter, Inc. Hybrid signal processing circuit for implantable medical devices and methods

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836876A (en) * 1971-05-05 1974-09-17 Secr Defence Acoustic surface wave devices
US3723916A (en) * 1971-10-01 1973-03-27 Us Navy Surface wave multiplex transducer device with gain and side lobe suppression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168215A (en) * 1984-12-10 1986-06-11 Secr Defence Improvements in or relating to multiplexing and demultiplexing systems

Also Published As

Publication number Publication date
FR2270719A1 (https=) 1975-12-05
FR2270719B1 (https=) 1980-09-26
DE2520057A1 (de) 1975-11-20
US3898592A (en) 1975-08-05
JPS50156345A (https=) 1975-12-17
IT1037956B (it) 1979-11-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee