GB2066603B - Storing and reproducing analogue signals - Google Patents
Storing and reproducing analogue signalsInfo
- 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
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)
- Theoretical 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)
- 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>
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)
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)
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 |
-
1979
- 1979-12-13 DE DE19792950066 patent/DE2950066C2/en not_active Expired
-
1980
- 1980-12-12 CH CH920180A patent/CH657934A5/en not_active IP Right Cessation
- 1980-12-15 GB GB8040061A patent/GB2066603B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2950066C2 (en) | 1983-01-20 |
GB2066603A (en) | 1981-07-08 |
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 |