JPS6416040A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS6416040A
JPS6416040A JP16986887A JP16986887A JPS6416040A JP S6416040 A JPS6416040 A JP S6416040A JP 16986887 A JP16986887 A JP 16986887A JP 16986887 A JP16986887 A JP 16986887A JP S6416040 A JPS6416040 A JP S6416040A
Authority
JP
Japan
Prior art keywords
data
section
code compression
compression method
coding
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.)
Pending
Application number
JP16986887A
Other languages
Japanese (ja)
Inventor
Takashi Aso
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP16986887A priority Critical patent/JPS6416040A/en
Publication of JPS6416040A publication Critical patent/JPS6416040A/en
Pending legal-status Critical Current

Links

Landscapes

  • Time-Division Multiplex Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

PURPOSE:To obtain optimum transmission efficiency at all times by transmitting each data subjected to coding and compression, and the data coding and compressing method. CONSTITUTION:A data quantity comparison section 10 measures the digital data quantity generated from A/D converters 5, 8 and obtains its ratio, and a code compression method deciding section 11 decides the code compression method of voice data and picture data at every time period of the synchronizing signal of a synchronizing signal generating section 14 based on the result of acoustic processing from an acoustic processing section 4 and the information from the section 10. A data synthesis section 12 collects the data of code compression section 6 for voice data and the code compression section 9 for picture data, addes a label representing the code compression method to generate a data block. Thus, the voice data in which real time transmission is dispensable and no so much tight specification exists and the picture data not requiring real time transmission but requesting uniform quality are sent simultaneously efficiently.
JP16986887A 1987-07-09 1987-07-09 Data transmission system Pending JPS6416040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16986887A JPS6416040A (en) 1987-07-09 1987-07-09 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16986887A JPS6416040A (en) 1987-07-09 1987-07-09 Data transmission system

Publications (1)

Publication Number Publication Date
JPS6416040A true JPS6416040A (en) 1989-01-19

Family

ID=15894437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16986887A Pending JPS6416040A (en) 1987-07-09 1987-07-09 Data transmission system

Country Status (1)

Country Link
JP (1) JPS6416040A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2523995B2 (en) * 1989-03-16 1996-08-14 富士通株式会社 Video / audio multiplex transmission system
US6928060B1 (en) 1998-03-27 2005-08-09 Yamaha Corporation Audio data communication
JP2010156631A (en) * 2008-12-29 2010-07-15 Seiko Epson Corp Satellite orbit data compressing method, satellite orbit data providing method, satellite orbit data decompressing method, and data compressing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136741A (en) * 1979-04-12 1980-10-24 Nec Corp Simultaneous transmission method for audio and data and its unit
JPS61198941A (en) * 1985-02-28 1986-09-03 Fujitsu Ltd Transfer speed variable type voice data multiplex system
JPS6256038A (en) * 1985-09-04 1987-03-11 Fujitsu Ltd Multi-medium transmission system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136741A (en) * 1979-04-12 1980-10-24 Nec Corp Simultaneous transmission method for audio and data and its unit
JPS61198941A (en) * 1985-02-28 1986-09-03 Fujitsu Ltd Transfer speed variable type voice data multiplex system
JPS6256038A (en) * 1985-09-04 1987-03-11 Fujitsu Ltd Multi-medium transmission system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2523995B2 (en) * 1989-03-16 1996-08-14 富士通株式会社 Video / audio multiplex transmission system
US6928060B1 (en) 1998-03-27 2005-08-09 Yamaha Corporation Audio data communication
JP2010156631A (en) * 2008-12-29 2010-07-15 Seiko Epson Corp Satellite orbit data compressing method, satellite orbit data providing method, satellite orbit data decompressing method, and data compressing device

Similar Documents

Publication Publication Date Title
AU582807B2 (en) Highly efficient coding apparatus for a digital video signal
EP1006735A3 (en) Video signal recording apparatus, video signal recording and reproduction apparatus, video signal coding device, and video signal transmission apparatus
IL125274A0 (en) Data compression/expansion using a rice encoder/decoder
MY127521A (en) Method and apparatus for converting color component type of picture signals, method and apparatus for converting compression format of picture signals and system for providing picture signals of a required compression format
EP0740474A3 (en) Video coding and decoding method and system with teletext capability
EP0779747A3 (en) High efficiency coding recording and reproducing apparatus
EP0841819A3 (en) Video/audio coding and multiplexing method and apparatus
CA2186027A1 (en) Video signal coding
EP0917373A3 (en) Encoding/decoding apparatus
EP0622958A2 (en) Real-time data transmitter and receiver
JPS6416040A (en) Data transmission system
EP0314356B1 (en) Predictive coding system
MXPA01008928A (en) Method and apparatus for coding moving picture image.
CA2300238A1 (en) Method and apparatus for encoding text in a midi datastream
EP1215918A3 (en) Method and apparatus for compressing picture-representing data
US5249047A (en) Predictive coding system
EP0772363A3 (en) Video data compression
JPS5792985A (en) High-efficiency forecast encoding device
JPS62145985A (en) Voice delay time control method
JPS64880A (en) Picture data compressing method by vector quantization
JP2603274B2 (en) Encoding device
JPH08340314A (en) Communication equipment
JP2526541Y2 (en) ADPCM transcoder
JPH01114181A (en) Predictive coding system
JPS63232589A (en) System for making band in sound-picture transmitting frame variable