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USB361569I5 - - Google Patents

Info

Publication number
USB361569I5
USB361569I5 US36156973A USB361569I5 US B361569 I5 USB361569 I5 US B361569I5 US 36156973 A US36156973 A US 36156973A US B361569 I5 USB361569 I5 US B361569I5
Authority
US
United States
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.)
Pending
Application number
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 filed Critical
Priority to US361569A priority Critical patent/US3914554A/en
Publication of USB361569I5 publication Critical patent/USB361569I5/en
Application granted granted Critical
Publication of US3914554A publication Critical patent/US3914554A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04B1/66—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 for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—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 for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
US361569A 1973-05-18 1973-05-18 Communication system employing spectrum folding Expired - Lifetime US3914554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US361569A US3914554A (en) 1973-05-18 1973-05-18 Communication system employing spectrum folding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US361569A US3914554A (en) 1973-05-18 1973-05-18 Communication system employing spectrum folding

Publications (2)

Publication Number Publication Date
USB361569I5 true USB361569I5 (en) 1975-01-28
US3914554A US3914554A (en) 1975-10-21

Family

ID=23422562

Family Applications (1)

Application Number Title Priority Date Filing Date
US361569A Expired - Lifetime US3914554A (en) 1973-05-18 1973-05-18 Communication system employing spectrum folding

Country Status (1)

Country Link
US (1) US3914554A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188820A (en) * 1986-04-04 1987-10-07 Kokusai Denshin Denwa Co Ltd System for transmitting voice signals utilising smaller bandwidth

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314104A (en) * 1976-12-13 1982-02-02 Vbc, Inc. Narrow band voice modulator system
US4255620A (en) * 1978-01-09 1981-03-10 Vbc, Inc. Method and apparatus for bandwidth reduction
US4181822A (en) * 1978-03-07 1980-01-01 Bell & Howell Company Bandsplitter systems
US4521646A (en) * 1980-06-26 1985-06-04 Callaghan Edward P Methods and apparatus for bandwidth reduction
US4512025A (en) * 1982-11-23 1985-04-16 The United States Of America As Represented By The United States Department Of Energy Increasing capacity of baseband digital data communication networks
US4630300A (en) * 1983-10-05 1986-12-16 United States Of America As Represented By The Secretary Of The Navy Front-end processor for narrowband transmission
US4615040A (en) * 1984-06-14 1986-09-30 Coenco Ltd. High speed data communications system
US5590403A (en) * 1992-11-12 1996-12-31 Destineer Corporation Method and system for efficiently providing two way communication between a central network and mobile unit
US5424631A (en) * 1994-01-03 1995-06-13 Itt Corporation Hybrid instantaneous frequency measurement compressive receiver apparatus and method
US5659891A (en) * 1995-06-07 1997-08-19 Mobile Telecommunication Technologies Multicarrier techniques in bandlimited channels
SE0001926D0 (en) 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation / folding in the subband domain
US6384773B1 (en) * 2000-12-15 2002-05-07 Harris Corporation Adaptive fragmentation and frequency translation of continuous spectrum waveform to make use of discontinuous unoccupied segments of communication bandwidth

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773126A (en) * 1929-05-31 1930-08-19 American Telephone & Telegraph Transmission system
US1948973A (en) * 1932-06-10 1934-02-27 Bell Telephone Labor Inc Wave transmission with narrowed band
US2014081A (en) * 1933-01-05 1935-09-10 Victoria Csepely Wave transmission system
US3030450A (en) * 1958-11-17 1962-04-17 Bell Telephone Labor Inc Band compression system
US3069506A (en) * 1957-09-04 1962-12-18 Ibm Consonant response in narrow band transmission
US3246084A (en) * 1960-08-26 1966-04-12 Bolt Beranek & Newman Method of and apparatus for speech compression and the like

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1773126A (en) * 1929-05-31 1930-08-19 American Telephone & Telegraph Transmission system
US1948973A (en) * 1932-06-10 1934-02-27 Bell Telephone Labor Inc Wave transmission with narrowed band
US2014081A (en) * 1933-01-05 1935-09-10 Victoria Csepely Wave transmission system
US3069506A (en) * 1957-09-04 1962-12-18 Ibm Consonant response in narrow band transmission
US3030450A (en) * 1958-11-17 1962-04-17 Bell Telephone Labor Inc Band compression system
US3246084A (en) * 1960-08-26 1966-04-12 Bolt Beranek & Newman Method of and apparatus for speech compression and the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188820A (en) * 1986-04-04 1987-10-07 Kokusai Denshin Denwa Co Ltd System for transmitting voice signals utilising smaller bandwidth
GB2188820B (en) * 1986-04-04 1989-11-29 Kokusai Denshin Denwa Co Ltd System for transmitting voice signal

Also Published As

Publication number Publication date
US3914554A (en) 1975-10-21

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