WO1999018761A3 - Vorrichtung zur drahtlosen übertragung digitaler daten, insbesondere audiodaten - Google Patents
Vorrichtung zur drahtlosen übertragung digitaler daten, insbesondere audiodaten Download PDFInfo
- Publication number
- WO1999018761A3 WO1999018761A3 PCT/DE1998/003008 DE9803008W WO9918761A3 WO 1999018761 A3 WO1999018761 A3 WO 1999018761A3 DE 9803008 W DE9803008 W DE 9803008W WO 9918761 A3 WO9918761 A3 WO 9918761A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wireless transmission
- digital data
- order
- bit timing
- audio data
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
- H04L2007/045—Fill bit or bits, idle words
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0091—Transmitter details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/048—Speed or phase control by synchronisation signals using the properties of error detecting or error correcting codes, e.g. parity as synchronisation signal
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transmitters (AREA)
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
Bei einer Vorrichtung zur drahtlosen Übertragung digitaler Daten verwendet man z.B. im Anwendungsfall von Kopfhörern Mikrowellen oder Infrarotlicht. Um hinsichtlich Kosten sowie Stromaufnahme und Platzbedarf des Empfängers hohe Anforderungen zu erfüllen, wird vorgeschlagen, einen weitgehend frequenzkonstanten Sendetakt zu verwenden und eine Datenwortsynchronisierung mit Hilfe von Start- und Füllbits vorzusehen. Weiterhin ist eine Gleichanteilbefreiung mittels Bitalternierung sowie die Kombination mit einer Fehlercodierung vorgesehen. Zur Sendetakt-Anpassung wird eine spezielle PLL vorgeschlagen.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19745592 | 1997-10-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999018761A2 WO1999018761A2 (de) | 1999-04-15 |
WO1999018761A3 true WO1999018761A3 (de) | 1999-07-01 |
Family
ID=7845631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/003008 WO1999018761A2 (de) | 1997-10-06 | 1998-10-05 | Vorrichtung zur drahtlosen übertragung digitaler daten, insbesondere audiodaten |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO1999018761A2 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4267777B2 (ja) | 1999-09-03 | 2009-05-27 | 富士通株式会社 | レイヤ2リンクのハンドリング装置 |
AT408298B (de) * | 1999-12-03 | 2001-10-25 | Akg Acoustics Gmbh | Verfahren und vorrichtung zur digitalen funk-übertragung von audiosignalen |
SG117462A1 (en) * | 2002-10-03 | 2005-12-29 | Audio Technica Us | Method and apparatus for remote control of an audio source such as a wireless microphone system |
US7693289B2 (en) | 2002-10-03 | 2010-04-06 | Audio-Technica U.S., Inc. | Method and apparatus for remote control of an audio source such as a wireless microphone system |
US8050203B2 (en) | 2004-12-22 | 2011-11-01 | Eleven Engineering Inc. | Multi-channel digital wireless audio system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3344204A1 (de) * | 1983-12-07 | 1985-06-20 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Multiplexverfahren zum uebertragen von hochwertig digitalisierten stereo-tonsignalen |
US5323396A (en) * | 1989-06-02 | 1994-06-21 | U.S. Philips Corporation | Digital transmission system, transmitter and receiver for use in the transmission system |
DE4328252A1 (de) * | 1993-08-23 | 1995-03-09 | Sennheiser Electronic | Vorrichtung zur drahtlosen Übertragung digitaler Daten, insbesondere von Audiodaten mit Hilfe von Infrarotlicht an einem Kopfhörer |
US5452326A (en) * | 1992-02-19 | 1995-09-19 | Sony Corporation | Digital PLL circuit with low power consumption |
EP0690598A2 (de) * | 1994-06-30 | 1996-01-03 | Sony Corporation | Infrarot-QPSK-Übertragungssystem |
EP0753850A1 (de) * | 1995-07-14 | 1997-01-15 | Sony Corporation | Binärkodierung von Signalen und digitale Signalverarbeitung |
-
1998
- 1998-10-05 WO PCT/DE1998/003008 patent/WO1999018761A2/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3344204A1 (de) * | 1983-12-07 | 1985-06-20 | Philips Kommunikations Industrie AG, 8500 Nürnberg | Multiplexverfahren zum uebertragen von hochwertig digitalisierten stereo-tonsignalen |
US5323396A (en) * | 1989-06-02 | 1994-06-21 | U.S. Philips Corporation | Digital transmission system, transmitter and receiver for use in the transmission system |
US5452326A (en) * | 1992-02-19 | 1995-09-19 | Sony Corporation | Digital PLL circuit with low power consumption |
DE4328252A1 (de) * | 1993-08-23 | 1995-03-09 | Sennheiser Electronic | Vorrichtung zur drahtlosen Übertragung digitaler Daten, insbesondere von Audiodaten mit Hilfe von Infrarotlicht an einem Kopfhörer |
EP0690598A2 (de) * | 1994-06-30 | 1996-01-03 | Sony Corporation | Infrarot-QPSK-Übertragungssystem |
EP0753850A1 (de) * | 1995-07-14 | 1997-01-15 | Sony Corporation | Binärkodierung von Signalen und digitale Signalverarbeitung |
Non-Patent Citations (1)
Title |
---|
HAUPT A: "DIGITALE AUDIO DATEN PER INFRAROT", RADIO FERNSEHEN ELEKTRONIK, vol. 45, no. 2, 1 February 1996 (1996-02-01), pages 26/27, XP000583076 * |
Also Published As
Publication number | Publication date |
---|---|
WO1999018761A2 (de) | 1999-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004004136A3 (en) | Frequency hopping spread spectrum decoder_______________________ | |
WO2001099305A3 (en) | Ultra wide band transmitter | |
CA2473880A1 (en) | Frequency hopping spread spectrum communications system | |
AU4109201A (en) | Transmitter, receiver, and method of data transmission | |
EP1330045A4 (de) | Sender und empfänger eines spreizspektrum-kommunikationssystems und modulations- und demodulationsverfahren dafür | |
GB0502347D0 (en) | Low frequency electromagnetic telemetry system employing high cardinality phase shift keying | |
AU2140092A (en) | Dual mode transmitter and receiver | |
AU1091199A (en) | Radio frequency communication apparatus, and methods of forming a radio frequency communication apparatus | |
WO2002056489A3 (en) | Local oscillator leakage control in direct conversion processes | |
AU7302900A (en) | Radio transmitter architecture comprising a pll and a delta-sigma modulator | |
AU2719701A (en) | Power characteristic of a radio transmitter | |
AU6705101A (en) | Systems and methods for a multi-carrier transceiver with radio frequency interference reduction | |
AU2003212650A1 (en) | Media transmitting method, media receiving method, media transmitter and media receiver | |
NZ306912A (en) | Power saving for transmitter of non-dtx digital radio transceiver | |
CA2124882A1 (en) | Interface Protocol Method and Apparatus for Use in a Frequency Hopping Radio System | |
EP0991201A3 (de) | CDMA-Sender geeignet zum Reduzieren der Sendeleistung | |
AU7549898A (en) | Radio transmitter and radio communication method | |
WO2004012343A3 (en) | Radio transceiver architectures and methods | |
WO1999018761A3 (de) | Vorrichtung zur drahtlosen übertragung digitaler daten, insbesondere audiodaten | |
WO2002009270A3 (en) | System and apparatus for a direct conversion receiver and transmitter | |
AU2003264812A1 (en) | Single oscillator dsss and ofdm radio receiver and transmitter | |
AU2001269483A1 (en) | Data transmitter, data receiver, and data transmitting/receiving method | |
GB2318696B (en) | Radio frequency transmitter | |
EP0827310A3 (de) | Infrarotübertragung von digitalen Audiosignalen | |
WO2002071629A3 (en) | Methods and systems for selective frequency hopping in multiple mode communication systems |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): CN JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
WPC | Withdrawal of priority claims after completion of the technical preparations for international publication | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): CN JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
122 | Ep: pct application non-entry in european phase |