ZA763090B - Improvements in or relating to encoding and decoding speech signals - Google Patents

Improvements in or relating to encoding and decoding speech signals

Info

Publication number
ZA763090B
ZA763090B ZA00763090A ZA763090A ZA763090B ZA 763090 B ZA763090 B ZA 763090B ZA 00763090 A ZA00763090 A ZA 00763090A ZA 763090 A ZA763090 A ZA 763090A ZA 763090 B ZA763090 B ZA 763090B
Authority
ZA
South Africa
Prior art keywords
encoding
relating
speech signals
decoding speech
decoding
Prior art date
Application number
ZA00763090A
Inventor
H Gruhl
P Rohm
G Kaminski
J Robra
Original Assignee
Tekade Felten & Guilleaume
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 Tekade Felten & Guilleaume filed Critical Tekade Felten & Guilleaume
Publication of ZA763090B publication Critical patent/ZA763090B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Facsimile Transmission Control (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
ZA00763090A 1975-05-30 1976-05-25 Improvements in or relating to encoding and decoding speech signals ZA763090B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2523828A DE2523828C2 (en) 1975-05-30 1975-05-30 Method for obfuscating speech signals with the aid of orthogonal matrices

Publications (1)

Publication Number Publication Date
ZA763090B true ZA763090B (en) 1978-01-25

Family

ID=5947713

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00763090A ZA763090B (en) 1975-05-30 1976-05-25 Improvements in or relating to encoding and decoding speech signals

Country Status (11)

Country Link
AT (1) AT351603B (en)
AU (1) AU501272B2 (en)
BE (1) BE842316A (en)
CH (1) CH613575A5 (en)
DE (1) DE2523828C2 (en)
DK (1) DK139408C (en)
FR (1) FR2312895A1 (en)
GB (1) GB1522062A (en)
NL (1) NL171003C (en)
SE (1) SE409798B (en)
ZA (1) ZA763090B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2811635A1 (en) * 1978-03-17 1979-09-20 Tekade Felten & Guilleaume PSEUDO-ACCESSIBLE PRODUCTION OF ORTHOGONAL MATRICES FOR ENCYCLING PURPOSES
CH649181A5 (en) * 1980-02-01 1985-04-30 Schweiz Eidgenossenschaft METHOD AND CIRCUIT FOR SECURED transmitting voice signals.
JP3724676B2 (en) * 1997-03-10 2005-12-07 ソニー株式会社 COMMUNICATION METHOD, TRANSMISSION DEVICE, AND RECEPTION DEVICE
JPH1168696A (en) * 1997-08-19 1999-03-09 Sony Corp Communication method, transmission equipment, reception equipment and cellular radio communication system
CN110489989A (en) * 2019-08-27 2019-11-22 深圳市道通智能航空技术有限公司 Data encrypting/de-encrypling method, its encryption/deciphering chip and its unmanned plane

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH232786A (en) * 1939-07-14 1944-06-15 Patelhold Patentverwertung Device for secret messaging.
CH237094A (en) * 1939-07-26 1945-03-31 Patelhold Patentverwertung Method and device for the transmission of messages to be kept secret.
NL63459C (en) * 1943-04-05
CH246844A (en) * 1945-09-15 1947-01-31 Patelhold Patentverwertung Method and device for obfuscating electrically transmitted voice messages.
FR1582036A (en) * 1968-03-15 1969-09-26

Also Published As

Publication number Publication date
DK155076A (en) 1976-12-01
DE2523828B1 (en) 1976-11-25
FR2312895B1 (en) 1982-06-11
SE7605731L (en) 1976-12-01
NL171003C (en) 1983-01-17
AT351603B (en) 1979-08-10
ATA391676A (en) 1979-01-15
AU1437276A (en) 1977-12-01
NL7602959A (en) 1976-12-02
NL171003B (en) 1982-08-16
DK139408C (en) 1979-07-30
CH613575A5 (en) 1979-09-28
GB1522062A (en) 1978-08-23
FR2312895A1 (en) 1976-12-24
DK139408B (en) 1979-02-12
DE2523828C2 (en) 1982-08-12
BE842316A (en) 1976-09-16
AU501272B2 (en) 1979-06-14
SE409798B (en) 1979-09-03

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