GB2020517A - Methods and apparatus for encoding and constructing signals - Google Patents

Methods and apparatus for encoding and constructing signals

Info

Publication number
GB2020517A
GB2020517A GB7910929A GB7910929A GB2020517A GB 2020517 A GB2020517 A GB 2020517A GB 7910929 A GB7910929 A GB 7910929A GB 7910929 A GB7910929 A GB 7910929A GB 2020517 A GB2020517 A GB 2020517A
Authority
GB
United Kingdom
Prior art keywords
signals
divisions
sub
symbols
methods
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.)
Granted
Application number
GB7910929A
Other versions
GB2020517B (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.)
Gosling H W
Original Assignee
Gosling H W
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 Gosling H W filed Critical Gosling H W
Priority to GB7910929A priority Critical patent/GB2020517B/en
Publication of GB2020517A publication Critical patent/GB2020517A/en
Application granted granted Critical
Publication of GB2020517B publication Critical patent/GB2020517B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Methods and apparatus are described for encoding electrical signals for transmission in a narrow frequency band or at a low bit rate and for constructing signals from encoded signals in which a succession of first signals A representing the durations of sub-divisions, for example, half cycles of the signal to be encoded are generated as is a succession of second signals C representing the shape of the sub-divisions. Each pair of first and second signals may then be replaced by one of a limited number of symbols. After an operation such as transmission to a remote location, or removal or addition of symbols, the symbols are translated back into first and second signals. Whether transmitted or from a store, the first and second signals are used to construct analogue signals having sub-divisions of duration derived from the first signals and shapes derived from the second signals. <IMAGE>
GB7910929A 1978-04-04 1979-03-29 Methods and apparatus for encoding and constructing signal Expired GB2020517B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7910929A GB2020517B (en) 1978-04-04 1979-03-29 Methods and apparatus for encoding and constructing signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1313578 1978-04-04
GB7910929A GB2020517B (en) 1978-04-04 1979-03-29 Methods and apparatus for encoding and constructing signal

Publications (2)

Publication Number Publication Date
GB2020517A true GB2020517A (en) 1979-11-14
GB2020517B GB2020517B (en) 1982-10-06

Family

ID=26249587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7910929A Expired GB2020517B (en) 1978-04-04 1979-03-29 Methods and apparatus for encoding and constructing signal

Country Status (1)

Country Link
GB (1) GB2020517B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6078500A (en) * 1983-09-01 1985-05-04 レジナルド　アルフレツド　キング Voice signal recognition method and voice recognition system
EP0457161A2 (en) * 1990-05-18 1991-11-21 Matsushita Electric Industrial Co., Ltd. Speech encoding apparatus and related decoding apparatus
US5101433A (en) * 1984-06-28 1992-03-31 King Reginald A Encoding method
US5231397A (en) * 1984-03-30 1993-07-27 Datajet, Inc. Extreme waveform coding
US6301562B1 (en) 1999-04-27 2001-10-09 New Transducers Limited Speech recognition using both time encoding and HMM in parallel

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6078500A (en) * 1983-09-01 1985-05-04 レジナルド　アルフレツド　キング Voice signal recognition method and voice recognition system
EP0141497A1 (en) * 1983-09-01 1985-05-15 Reginald Alfred King Voice recognition
JP2619852B2 (en) 1983-09-01 1997-06-11 アルフレツド キング レジナルド Voice signal recognition method and voice recognition method
US5231397A (en) * 1984-03-30 1993-07-27 Datajet, Inc. Extreme waveform coding
US5101433A (en) * 1984-06-28 1992-03-31 King Reginald A Encoding method
EP0457161A2 (en) * 1990-05-18 1991-11-21 Matsushita Electric Industrial Co., Ltd. Speech encoding apparatus and related decoding apparatus
EP0457161A3 (en) * 1990-05-18 1992-12-09 Matsushita Electric Industrial Co., Ltd. Speech encoding apparatus and related decoding apparatus
US5228086A (en) * 1990-05-18 1993-07-13 Matsushita Electric Industrial Co., Ltd. Speech encoding apparatus and related decoding apparatus
US6301562B1 (en) 1999-04-27 2001-10-09 New Transducers Limited Speech recognition using both time encoding and HMM in parallel

Also Published As

Publication number Publication date
GB2020517B (en) 1982-10-06

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Legal Events

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

Free format text: 5203, PAGE 3568

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19990328