MY111488A - Method and apparatus for low cost audio scrambling and descrambling - Google Patents

Method and apparatus for low cost audio scrambling and descrambling

Info

Publication number
MY111488A
MY111488A MYPI94002827A MYPI19942827A MY111488A MY 111488 A MY111488 A MY 111488A MY PI94002827 A MYPI94002827 A MY PI94002827A MY PI19942827 A MYPI19942827 A MY PI19942827A MY 111488 A MY111488 A MY 111488A
Authority
MY
Malaysia
Prior art keywords
signal
carrier
modulators
scrambled
audio
Prior art date
Application number
MYPI94002827A
Other languages
English (en)
Inventor
Quan Ronald
Original Assignee
Macrovision 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 Macrovision Corp filed Critical Macrovision Corp
Publication of MY111488A publication Critical patent/MY111488A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplitude Modulation (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Transmitters (AREA)
MYPI94002827A 1993-10-26 1994-10-25 Method and apparatus for low cost audio scrambling and descrambling MY111488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14506693A 1993-10-26 1993-10-26

Publications (1)

Publication Number Publication Date
MY111488A true MY111488A (en) 2000-06-30

Family

ID=22511456

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI94002827A MY111488A (en) 1993-10-26 1994-10-25 Method and apparatus for low cost audio scrambling and descrambling

Country Status (14)

Country Link
EP (1) EP0744105B1 (de)
JP (1) JP3150700B2 (de)
KR (1) KR100249656B1 (de)
AT (1) ATE175063T1 (de)
AU (1) AU695981B2 (de)
CA (1) CA2181691C (de)
DE (1) DE69415555T2 (de)
DK (1) DK0744105T3 (de)
ES (1) ES2125494T3 (de)
HK (1) HK1013747A1 (de)
MY (1) MY111488A (de)
NZ (1) NZ275269A (de)
TW (1) TW311307B (de)
WO (1) WO1995012922A2 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636853A (en) * 1983-12-21 1987-01-13 Zenith Electronics Corporation Dynamic audio scrambling system
US5058159A (en) * 1989-06-15 1991-10-15 Macrovision Corporation Method and system for scrambling and descrambling audio information signals
US5159631A (en) * 1990-04-26 1992-10-27 Macrovision Corporation Audio scrambling system using in-band carrier

Also Published As

Publication number Publication date
AU8082894A (en) 1995-05-23
WO1995012922A2 (en) 1995-05-11
EP0744105A1 (de) 1996-11-27
NZ275269A (en) 1998-08-26
JPH10500259A (ja) 1998-01-06
DE69415555D1 (de) 1999-02-04
DK0744105T3 (da) 1999-08-23
ATE175063T1 (de) 1999-01-15
ES2125494T3 (es) 1999-03-01
AU695981B2 (en) 1998-08-27
KR100249656B1 (ko) 2000-03-15
TW311307B (de) 1997-07-21
CA2181691A1 (en) 1995-05-11
JP3150700B2 (ja) 2001-03-26
DE69415555T2 (de) 1999-05-12
HK1013747A1 (en) 1999-09-03
EP0744105B1 (de) 1998-12-23
CA2181691C (en) 2000-10-17
WO1995012922A3 (en) 1995-07-13

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