GB1387429A - Communication system - Google Patents

Communication system

Info

Publication number
GB1387429A
GB1387429A GB4241574A GB4241574A GB1387429A GB 1387429 A GB1387429 A GB 1387429A GB 4241574 A GB4241574 A GB 4241574A GB 4241574 A GB4241574 A GB 4241574A GB 1387429 A GB1387429 A GB 1387429A
Authority
GB
United Kingdom
Prior art keywords
sampling
analogue
rate
signal
pulse code
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
GB4241574A
Other languages
English (en)
Inventor
Leonard S Golding
Ronald K Garlow
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.)
Comsat Corp
Original Assignee
Comsat Corp
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 Comsat Corp filed Critical Comsat Corp
Publication of GB1387429A publication Critical patent/GB1387429A/en
Expired 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/04—Colour television systems using pulse code modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Color Television Systems (AREA)
  • Processing Of Color Television Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Radio Relay Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Analogue/Digital Conversion (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Networks Using Active Elements (AREA)
GB4241574A 1971-01-11 1972-01-11 Communication system Expired GB1387429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10538671A 1971-01-11 1971-01-11

Publications (1)

Publication Number Publication Date
GB1387429A true GB1387429A (en) 1975-03-19

Family

ID=22305545

Family Applications (3)

Application Number Title Priority Date Filing Date
GB4241574A Expired GB1387429A (en) 1971-01-11 1972-01-11 Communication system
GB132572A Expired GB1387427A (en) 1971-01-11 1972-01-11 Tv communications system
GB3893074A Expired GB1387428A (en) 1971-01-11 1972-01-11 Filtering system

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB132572A Expired GB1387427A (en) 1971-01-11 1972-01-11 Tv communications system
GB3893074A Expired GB1387428A (en) 1971-01-11 1972-01-11 Filtering system

Country Status (7)

Country Link
JP (1) JPS588193B1 (enExample)
CA (1) CA956725A (enExample)
DE (1) DE2201066C2 (enExample)
FR (1) FR2121761B1 (enExample)
GB (3) GB1387429A (enExample)
IT (1) IT948824B (enExample)
SE (3) SE379263B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068673B (en) * 1980-01-30 1983-09-07 Sony Corp Decoding and recoding composite digital colour television signals
JPS6199091U (enExample) * 1984-12-06 1986-06-25

Also Published As

Publication number Publication date
SE7506409L (sv) 1975-06-04
JPS588193B1 (enExample) 1983-02-15
GB1387427A (en) 1975-03-19
DE2201066A1 (de) 1972-08-10
GB1387428A (en) 1975-03-19
SE402691B (sv) 1978-07-10
FR2121761A1 (enExample) 1972-08-25
SE379263B (enExample) 1975-09-29
DE2201066C2 (de) 1983-01-20
CA956725A (en) 1974-10-22
SE7506408L (sv) 1975-06-04
IT948824B (it) 1973-06-11
SE402692B (sv) 1978-07-10
FR2121761B1 (enExample) 1973-06-29

Similar Documents

Publication Publication Date Title
JPS5679585A (en) Method of raising general resolution for television system and circuit device for executing same method
GB1304606A (enExample)
JPS53108481A (en) Digital frequency analyzer
GB1322693A (en) Frequency division multiplex singleside band modulation systems
EP0068810A3 (en) Colour video signal processing apparatus
GB1533635A (en) Method and apparatus for detecting the presence of signal components of a predetermined frequency in multi-frequency pcm signals
EP0241312A3 (en) Method and apparatus for decoding colour video signals using a digital comb filter
ES413913A1 (es) Perfeccionamientos en codificadores secuenciales de lineas para sistemas de registro o grabacion de television en co- lor.
GB1387429A (en) Communication system
GB1456103A (en) Vocoder system
DK166188C (da) Fjernsynsmodtager og frekvensdemodulator
GB1511230A (en) Colour television
GB1357165A (en) Differential pulse-code modulation
EP0072399A3 (en) Digital transmultiplexer
GB1476900A (en) Digitally coding a colour television signal
US4400718A (en) Digital television transmission using chrominance inversion
ES386680A1 (es) Receptor de senal por desplazamiento de frecuencia.
GB860662A (en) Improvements in or relating to carrier telephone systems
DE3461586D1 (en) Video recorder
JPS57203386A (en) Coding device of color picture signal
GB2003695A (en) Transcoding digital PAL colour television signals
SU882008A1 (ru) Устройство приема сигналов
GB1580724A (en) Colour television
GB2252008B (en) Improvements in and relating to television systems
JPS5619287A (en) Converting and adverse converting device for tdm color television signal

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee