HK54594A - Subband encoding method and apparatus - Google Patents
Subband encoding method and apparatusInfo
- Publication number
- HK54594A HK54594A HK54594A HK54594A HK54594A HK 54594 A HK54594 A HK 54594A HK 54594 A HK54594 A HK 54594A HK 54594 A HK54594 A HK 54594A HK 54594 A HK54594 A HK 54594A
- Authority
- HK
- Hong Kong
- Prior art keywords
- encoding method
- subband encoding
- subband
- encoding
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
-
- 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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/661,597 US4817146A (en) | 1984-10-17 | 1984-10-17 | Cryptographic digital signal transceiver method and apparatus |
US06/661,598 US4622680A (en) | 1984-10-17 | 1984-10-17 | Hybrid subband coder/decoder method and apparatus |
US06/661,733 US4757536A (en) | 1984-10-17 | 1984-10-17 | Method and apparatus for transceiving cryptographically encoded digital data |
US06/661,740 US5051991A (en) | 1984-10-17 | 1984-10-17 | Method and apparatus for efficient digital time delay compensation in compressed bandwidth signal processing |
Publications (1)
Publication Number | Publication Date |
---|---|
HK54594A true HK54594A (en) | 1994-06-03 |
Family
ID=27505309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK54594A HK54594A (en) | 1984-10-17 | 1994-05-24 | Subband encoding method and apparatus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0178608B1 (xx) |
JP (1) | JP2571761B2 (xx) |
KR (1) | KR940004461B1 (xx) |
DE (1) | DE3587710T2 (xx) |
HK (1) | HK54594A (xx) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4893339A (en) * | 1986-09-03 | 1990-01-09 | Motorola, Inc. | Secure communication system |
US4905234A (en) * | 1987-06-03 | 1990-02-27 | General Electric Company | Apparatus and method for transmitting digital data over a radio communications channel |
US4979188A (en) * | 1988-04-29 | 1990-12-18 | Motorola, Inc. | Spectrally efficient method for communicating an information signal |
US4910777A (en) * | 1988-09-20 | 1990-03-20 | At&T Bell Laboratories | Packet switching architecture providing encryption across packets |
NL9000338A (nl) * | 1989-06-02 | 1991-01-02 | Koninkl Philips Electronics Nv | Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting. |
EP0554934B1 (en) * | 1992-02-03 | 2001-11-21 | Koninklijke Philips Electronics N.V. | Transmission of digital wideband signals |
BE1007617A3 (nl) * | 1993-10-11 | 1995-08-22 | Philips Electronics Nv | Transmissiesysteem met gebruik van verschillende codeerprincipes. |
US6411714B1 (en) | 1995-09-13 | 2002-06-25 | Hitachi, Ltd. | Data decompression/decryption method and system |
US6122378A (en) * | 1995-09-13 | 2000-09-19 | Hitachi, Ltd. | Data compression/encryption method and system |
DE19906223B4 (de) * | 1999-02-15 | 2004-07-08 | Siemens Ag | Verfahren und Funk-Kommunikationssystem zur Sprachübertragung, insbesondere für digitale Mobilkummunikationssysteme |
DE102008021360A1 (de) * | 2008-04-29 | 2009-11-05 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zum Erkennen eines Lagerschadens |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4027243A (en) * | 1975-05-12 | 1977-05-31 | General Electric Company | Message generator for a controlled radio transmitter and receiver |
GB2086106B (en) * | 1980-10-13 | 1984-06-27 | Motorola Ltd | Pager decoding system with intelligent synchronisation circuit |
JPS594718B2 (ja) * | 1981-05-06 | 1984-01-31 | 日本電信電話株式会社 | 音声符号化方式 |
US4434323A (en) * | 1981-06-29 | 1984-02-28 | Motorola, Inc. | Scrambler key code synchronizer |
US4455649A (en) * | 1982-01-15 | 1984-06-19 | International Business Machines Corporation | Method and apparatus for efficient statistical multiplexing of voice and data signals |
DE3276651D1 (en) * | 1982-11-26 | 1987-07-30 | Ibm | Speech signal coding method and apparatus |
-
1985
- 1985-10-11 EP EP85112940A patent/EP0178608B1/en not_active Expired - Lifetime
- 1985-10-11 DE DE85112940T patent/DE3587710T2/de not_active Expired - Fee Related
- 1985-10-16 KR KR1019850007610A patent/KR940004461B1/ko not_active IP Right Cessation
- 1985-10-17 JP JP60230046A patent/JP2571761B2/ja not_active Expired - Lifetime
-
1994
- 1994-05-24 HK HK54594A patent/HK54594A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0178608A3 (en) | 1988-08-10 |
EP0178608A2 (en) | 1986-04-23 |
JPS6198035A (ja) | 1986-05-16 |
JP2571761B2 (ja) | 1997-01-16 |
DE3587710T2 (de) | 1994-04-28 |
EP0178608B1 (en) | 1993-12-29 |
KR860003717A (ko) | 1986-05-28 |
KR940004461B1 (ko) | 1994-05-25 |
DE3587710D1 (de) | 1994-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |