GB2122456B - Method of and apparatus for duplex communications - Google Patents

Method of and apparatus for duplex communications

Info

Publication number
GB2122456B
GB2122456B GB08313829A GB8313829A GB2122456B GB 2122456 B GB2122456 B GB 2122456B GB 08313829 A GB08313829 A GB 08313829A GB 8313829 A GB8313829 A GB 8313829A GB 2122456 B GB2122456 B GB 2122456B
Authority
GB
United Kingdom
Prior art keywords
duplex communications
duplex
communications
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
GB08313829A
Other versions
GB2122456A (en
GB8313829D0 (en
Inventor
Ronald R White
Michael R Harrison
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8313829D0 publication Critical patent/GB8313829D0/en
Publication of GB2122456A publication Critical patent/GB2122456A/en
Application granted granted Critical
Publication of GB2122456B publication Critical patent/GB2122456B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/408—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency the transmitter oscillator frequency being identical to the receiver local oscillator frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)
GB08313829A 1982-05-19 1983-05-19 Method of and apparatus for duplex communications Expired GB2122456B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37976082A 1982-05-19 1982-05-19

Publications (3)

Publication Number Publication Date
GB8313829D0 GB8313829D0 (en) 1983-06-22
GB2122456A GB2122456A (en) 1984-01-11
GB2122456B true GB2122456B (en) 1986-11-26

Family

ID=23498569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08313829A Expired GB2122456B (en) 1982-05-19 1983-05-19 Method of and apparatus for duplex communications

Country Status (2)

Country Link
JP (1) JPS58210729A (en)
GB (1) GB2122456B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584707A (en) * 1985-01-22 1986-04-22 Dataproducts New England, Inc. Cordless communications system
US4759078A (en) * 1986-11-14 1988-07-19 Rose Communication Systems, Inc. Coordinated local oscillator receiving system
DE3715588C1 (en) * 1987-05-09 1988-09-08 Gewerkschaft Eisenhuette Westfalia Gmbh, 4670 Luenen, De
US5101505A (en) * 1990-02-09 1992-03-31 Rose Communications, Inc. Method and apparatus for selective sideband signal correction in a proximal cable-less communication system
US5109545A (en) * 1990-02-09 1992-04-28 Rose Communications, Inc. Proximal cable-less communication system with intentional signal path
FI94808C (en) * 1991-08-29 1995-10-25 Nokia Telecommunications Oy Frequency modulated transmitter receiver
US5444737A (en) * 1993-05-05 1995-08-22 National Semiconductor Corporation Wireless data transceiver
US5550865A (en) * 1993-05-05 1996-08-27 National Semiconductor Corporation Frequency modulator for data transceiver

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB584513A (en) * 1943-07-26 1947-01-16 Patelhold Patentverwertung Transmission of signals by two-way radio communication with directional aerial
FR1121655A (en) * 1955-02-11 1956-08-23 Thomson Houston Comp Francaise Hertzian relay without local oscillator
GB923178A (en) * 1960-12-22 1963-04-10 Gen Electric Co Ltd Improvements in or relating to radio apparatus for use in a continuous wave radio system
US3202917A (en) * 1962-01-18 1965-08-24 Nippon Electric Co Mono-oscillator u. h. f. transmitterreceiver
GB1339701A (en) * 1971-02-10 1973-12-05 Selenia Ind Elettronichie Asso Repeaters for use in frequency modulated radio relay systems
CA1023434A (en) * 1973-03-02 1977-12-27 Salvatore Amoroso (Jr.) Single oscillator microwave transceiver
US3916412A (en) * 1974-08-29 1975-10-28 United Technologies Corp Frequency stabilized single oscillator transceivers
JPS5168708A (en) * 1974-12-11 1976-06-14 Ricoh Kk
DE2744127B2 (en) * 1977-09-30 1979-10-31 Siemens Ag, 1000 Berlin Und 8000 Muenchen Duplex microwave radio system
JPS575098A (en) * 1980-06-11 1982-01-11 Nippon Musical Instruments Mfg Automatic performance device

Also Published As

Publication number Publication date
JPS58210729A (en) 1983-12-08
GB2122456A (en) 1984-01-11
GB8313829D0 (en) 1983-06-22

Similar Documents

Publication Publication Date Title
DE3365499D1 (en) Method and apparatus for encrypted radio communications
AU573728B2 (en) Apparatus and method for protection of contacts
DE3368868D1 (en) Method of contraception and apparatus for carrying out such method
GB2115146B (en) Method and apparatus for determination of anions
GB2130038B (en) Compensation method and apparatus for an rc attenuator
GB2155554B (en) Method of and apparatus for application
IL63117A (en) Apparatus and method for transmission of communications
GB2131001B (en) Currency-dispensing method and apparatus
DE3274164D1 (en) Method and apparatus for division operations
AU1687983A (en) Diaphanoscopy method and apparatus
EG19677A (en) Apparatus and method for highly efficient method of laudering textiles
GB8307963D0 (en) Method and apparatus
JPS57125453A (en) Method of and apparatus for transmitting data block
GB2135153B (en) Deconvolution method and apparatus
GB2122456B (en) Method of and apparatus for duplex communications
EP0094177A3 (en) Method and apparatus for direct memory-to-memory intercomputer communication
DE3362743D1 (en) Method of and apparatus for forming gears
GB2129356B (en) Billet-shearing method and apparatus
DE3478769D1 (en) An improved method of character recognitionand apparatus therefor
GB2113641B (en) Method of and apparatus for grouping objects
DE3370382D1 (en) Electrophotographic method and apparatus
GB2180618B (en) Polymeric apparatus and method of making same
DE3379231D1 (en) Apparatus and method of making metallic cord
GB2133237B (en) Technique for transmission of voice communications and apparatus useful therein
PL250670A1 (en) Method of and apparatus for reducing oxidic sibstances

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee