GB2165426B - Data compression system and method for processing digital sample signals - Google Patents

Data compression system and method for processing digital sample signals

Info

Publication number
GB2165426B
GB2165426B GB08519232A GB8519232A GB2165426B GB 2165426 B GB2165426 B GB 2165426B GB 08519232 A GB08519232 A GB 08519232A GB 8519232 A GB8519232 A GB 8519232A GB 2165426 B GB2165426 B GB 2165426B
Authority
GB
United Kingdom
Prior art keywords
data compression
compression system
digital sample
processing digital
sample signals
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
GB08519232A
Other versions
GB8519232D0 (en
GB2165426A (en
Inventor
Charles S Weaver
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.)
SRI International Inc
Original Assignee
SRI International Inc
Stanford Research Institute
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 SRI International Inc, Stanford Research Institute filed Critical SRI International Inc
Publication of GB8519232D0 publication Critical patent/GB8519232D0/en
Publication of GB2165426A publication Critical patent/GB2165426A/en
Application granted granted Critical
Publication of GB2165426B publication Critical patent/GB2165426B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H17/0227—Measures concerning the coefficients
    • H03H17/023—Measures concerning the coefficients reducing the wordlength, the possible values of coefficients
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7232—Signal processing specially adapted for physiological signals or for diagnostic purposes involving compression of the physiological signal, e.g. to extend the signal recording period

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB08519232A 1983-12-12 1984-02-27 Data compression system and method for processing digital sample signals Expired GB2165426B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56061083A 1983-12-12 1983-12-12
PCT/US1984/000323 WO1985002529A1 (en) 1983-12-12 1984-02-27 Data compression system and method for processing digital sample signals

Publications (3)

Publication Number Publication Date
GB8519232D0 GB8519232D0 (en) 1985-09-04
GB2165426A GB2165426A (en) 1986-04-09
GB2165426B true GB2165426B (en) 1988-01-13

Family

ID=24238541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08519232A Expired GB2165426B (en) 1983-12-12 1984-02-27 Data compression system and method for processing digital sample signals

Country Status (6)

Country Link
JP (1) JPS61500998A (en)
CA (1) CA1224876A (en)
DE (2) DE3490580T (en)
GB (1) GB2165426B (en)
NL (1) NL8420060A (en)
WO (1) WO1985002529A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4802222A (en) * 1983-12-12 1989-01-31 Sri International Data compression system and method for audio signals
DE3602808A1 (en) * 1986-01-30 1987-08-06 Siemens Ag Code device for variable word length
DE3605032A1 (en) * 1986-02-18 1987-08-20 Thomson Brandt Gmbh DIGITAL MESSAGE TRANSMISSION METHOD
US4882754A (en) * 1987-08-25 1989-11-21 Digideck, Inc. Data compression system and method with buffer control
GB2511479A (en) * 2012-12-17 2014-09-10 Librae Ltd Interacting toys

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098267A (en) * 1977-07-05 1978-07-04 Clinical Data, Inc. System for display and analysis of physiological signals such as electrocardiographic (ECG) signals
US4449536A (en) * 1980-10-31 1984-05-22 Sri International Method and apparatus for digital data compression
US4396906A (en) * 1980-10-31 1983-08-02 Sri International Method and apparatus for digital Huffman encoding

Also Published As

Publication number Publication date
DE3490580C2 (en) 1993-03-04
GB8519232D0 (en) 1985-09-04
CA1224876A (en) 1987-07-28
DE3490580T (en) 1986-01-23
JPS61500998A (en) 1986-05-15
NL8420060A (en) 1985-11-01
GB2165426A (en) 1986-04-09
WO1985002529A1 (en) 1985-06-20

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Legal Events

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

Effective date: 19930227