GB2066603B - Storing and reproducing analogue signals - Google Patents

Storing and reproducing analogue signals

Info

Publication number
GB2066603B
GB2066603B GB8040061A GB8040061A GB2066603B GB 2066603 B GB2066603 B GB 2066603B GB 8040061 A GB8040061 A GB 8040061A GB 8040061 A GB8040061 A GB 8040061A GB 2066603 B GB2066603 B GB 2066603B
Authority
GB
United Kingdom
Prior art keywords
signal
read
reproducing
storing
decoded
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
GB8040061A
Other versions
GB2066603A (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.)
Tekade Felten and Guilleaume Fernmeldeanlagen GmbH
Original Assignee
Tekade Felten and Guilleaume Fernmeldeanlagen GmbH
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 Tekade Felten and Guilleaume Fernmeldeanlagen GmbH filed Critical Tekade Felten and Guilleaume Fernmeldeanlagen GmbH
Publication of GB2066603A publication Critical patent/GB2066603A/en
Application granted granted Critical
Publication of GB2066603B publication Critical patent/GB2066603B/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
    • G10L13/00—Speech synthesis; Text to speech systems
    • G10L13/06—Elementary speech units used in speech synthesisers; Concatenation rules
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/02—Delta modulation, i.e. one-bit differential modulation
    • H03M3/022—Delta modulation, i.e. one-bit differential modulation with adaptable step size, e.g. adaptive delta modulation [ADM]

Landscapes

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

Abstract

An analogue signal, such as a speech signal, is encoded by a delta modulation encoder 3 and stored in a digital memory 5, or is decoded by a delta modulation decoder from the store 5. The speed at which the bits are produced by an encoder 3 and read into the memory 5 or read out of the store 5 and decoded by the decoder is controlled by the instantaneous value of a characteristic quantity of the analogue signal or the associated binary coded signal. The characteristic quantity may be the binary pattern which is produced by a limited number of successive bits of the encoded or read-out signal. It is thus possible to reduce the memory space required for a given length of signal to be reproduced with a given quality. <IMAGE>
GB8040061A 1979-12-13 1980-12-15 Storing and reproducing analogue signals Expired GB2066603B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792950066 DE2950066C2 (en) 1979-12-13 1979-12-13 Method for storing and reproducing an analog signal

Publications (2)

Publication Number Publication Date
GB2066603A GB2066603A (en) 1981-07-08
GB2066603B true GB2066603B (en) 1984-02-29

Family

ID=6088314

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8040061A Expired GB2066603B (en) 1979-12-13 1980-12-15 Storing and reproducing analogue signals

Country Status (3)

Country Link
CH (1) CH657934A5 (en)
DE (1) DE2950066C2 (en)
GB (1) GB2066603B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4402901A1 (en) * 1994-02-02 1995-08-03 Sel Alcatel Ag Device and method for storing and reproducing digital data

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2412382A1 (en) * 1974-03-15 1975-09-18 Helmut Wappler Speech signal storage and replay system - reduces complexity and cost by dispersing with erase and re-record facility
DE2828419C2 (en) * 1978-06-28 1980-07-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for generating a pulse sequence which is used to sample a periodic process

Also Published As

Publication number Publication date
GB2066603A (en) 1981-07-08
DE2950066C2 (en) 1983-01-20
DE2950066A1 (en) 1981-06-19
CH657934A5 (en) 1986-09-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee