DE3273485D1 - Differential pulse code modulation transmission system - Google Patents
Differential pulse code modulation transmission systemInfo
- Publication number
- DE3273485D1 DE3273485D1 DE8282201438T DE3273485T DE3273485D1 DE 3273485 D1 DE3273485 D1 DE 3273485D1 DE 8282201438 T DE8282201438 T DE 8282201438T DE 3273485 T DE3273485 T DE 3273485T DE 3273485 D1 DE3273485 D1 DE 3273485D1
- Authority
- DE
- Germany
- Prior art keywords
- prediction
- transmission system
- pulse code
- code modulation
- differential pulse
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3044—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Transmitters (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Amplifiers (AREA)
- Radar Systems Or Details Thereof (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8105196A NL8105196A (nl) | 1981-11-17 | 1981-11-17 | Differentieel pulscode modulatie overdrachtstelsel. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3273485D1 true DE3273485D1 (en) | 1986-10-30 |
Family
ID=19838392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8282201438T Expired DE3273485D1 (en) | 1981-11-17 | 1982-11-15 | Differential pulse code modulation transmission system |
Country Status (8)
Country | Link |
---|---|
US (1) | US4481644A (de) |
EP (1) | EP0079658B1 (de) |
JP (1) | JPS58125928A (de) |
AT (1) | ATE22514T1 (de) |
AU (1) | AU552686B2 (de) |
CA (1) | CA1193734A (de) |
DE (1) | DE3273485D1 (de) |
NL (1) | NL8105196A (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8203950A (nl) * | 1982-10-13 | 1984-05-01 | Philips Nv | Differentieel pulscodemodulatie overdrachtstelsel. |
AU570439B2 (en) * | 1983-03-28 | 1988-03-17 | Compression Labs, Inc. | A combined intraframe and interframe transform coding system |
AU572556B2 (en) * | 1983-10-07 | 1988-05-12 | Dolby Laboratories Licensing Corporation | A/d encoder and decoder |
NL8303567A (nl) * | 1983-10-17 | 1985-05-17 | Philips Nv | Inrichting voor het weergeven van videosignalen. |
GB2189106B (en) * | 1986-04-14 | 1990-02-14 | Philips Electronic Associated | Image display |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3354267A (en) * | 1965-01-13 | 1967-11-21 | Bell Telephone Labor Inc | Differential pcm system employing digital integration |
CA1085044A (en) * | 1975-04-03 | 1980-09-02 | Yukihiko Iijima | Composite feedback predictive code communication system for a color tv signal including a carrier chrominance signal |
JPS5550738A (en) * | 1978-10-05 | 1980-04-12 | Nec Corp | Decoding method of adaptability forecasting type differential pulse code and its unit |
FR2445660A1 (fr) * | 1978-12-28 | 1980-07-25 | Pissard Andre | Procede et circuit de transmission de type mic differentiel a prediction adaptive, utilisant un filtrage par sous-bandes et une analyse spectrale |
US4255763A (en) * | 1979-12-26 | 1981-03-10 | Bell Telephone Laboratories, Incorporated | Technique for reducing transmission error propagation in an adaptively predicted DPCM video encoder |
-
1981
- 1981-11-17 NL NL8105196A patent/NL8105196A/nl not_active Application Discontinuation
-
1982
- 1982-10-18 US US06/434,982 patent/US4481644A/en not_active Expired - Fee Related
- 1982-11-12 CA CA000415485A patent/CA1193734A/en not_active Expired
- 1982-11-15 AT AT82201438T patent/ATE22514T1/de not_active IP Right Cessation
- 1982-11-15 AU AU90478/82A patent/AU552686B2/en not_active Ceased
- 1982-11-15 DE DE8282201438T patent/DE3273485D1/de not_active Expired
- 1982-11-15 EP EP82201438A patent/EP0079658B1/de not_active Expired
- 1982-11-17 JP JP57200487A patent/JPS58125928A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
CA1193734A (en) | 1985-09-17 |
AU9047882A (en) | 1983-05-26 |
EP0079658A1 (de) | 1983-05-25 |
US4481644A (en) | 1984-11-06 |
EP0079658B1 (de) | 1986-09-24 |
ATE22514T1 (de) | 1986-10-15 |
AU552686B2 (en) | 1986-06-12 |
NL8105196A (nl) | 1983-06-16 |
JPH0245855B2 (de) | 1990-10-12 |
JPS58125928A (ja) | 1983-07-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |