JPS58200647A - 適応量子化及び逆量子化方法と装置 - Google Patents

適応量子化及び逆量子化方法と装置

Info

Publication number
JPS58200647A
JPS58200647A JP8349082A JP8349082A JPS58200647A JP S58200647 A JPS58200647 A JP S58200647A JP 8349082 A JP8349082 A JP 8349082A JP 8349082 A JP8349082 A JP 8349082A JP S58200647 A JPS58200647 A JP S58200647A
Authority
JP
Japan
Prior art keywords
quantization
width
circuit
adaptive
output
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.)
Granted
Application number
JP8349082A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0123971B2 (enrdf_load_stackoverflow
Inventor
Takao Nishitani
隆夫 西谷
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8349082A priority Critical patent/JPS58200647A/ja
Priority to AU86082/82A priority patent/AU564770B2/en
Priority to FR8212581A priority patent/FR2509888B1/fr
Publication of JPS58200647A publication Critical patent/JPS58200647A/ja
Priority to US06/858,865 priority patent/US4862173A/en
Publication of JPH0123971B2 publication Critical patent/JPH0123971B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP8349082A 1981-07-17 1982-05-18 適応量子化及び逆量子化方法と装置 Granted JPS58200647A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8349082A JPS58200647A (ja) 1982-05-18 1982-05-18 適応量子化及び逆量子化方法と装置
AU86082/82A AU564770B2 (en) 1981-07-17 1982-07-16 Forward and inverse quantization by varying a reference step size
FR8212581A FR2509888B1 (fr) 1981-07-17 1982-07-19 Procede et circuit pour l'execution de quantification directe et inverse par variation d'un pas de progression de reference
US06/858,865 US4862173A (en) 1981-07-17 1986-05-01 Method and circuit for carrying out forward and inverse quantization by varying a reference step size

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8349082A JPS58200647A (ja) 1982-05-18 1982-05-18 適応量子化及び逆量子化方法と装置

Publications (2)

Publication Number Publication Date
JPS58200647A true JPS58200647A (ja) 1983-11-22
JPH0123971B2 JPH0123971B2 (enrdf_load_stackoverflow) 1989-05-09

Family

ID=13803912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8349082A Granted JPS58200647A (ja) 1981-07-17 1982-05-18 適応量子化及び逆量子化方法と装置

Country Status (1)

Country Link
JP (1) JPS58200647A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0123971B2 (enrdf_load_stackoverflow) 1989-05-09

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