DE59511097D1 - Pseudo stereo circuit for mobile radio receiver - Google Patents

Pseudo stereo circuit for mobile radio receiver

Info

Publication number
DE59511097D1
DE59511097D1 DE59511097T DE59511097T DE59511097D1 DE 59511097 D1 DE59511097 D1 DE 59511097D1 DE 59511097 T DE59511097 T DE 59511097T DE 59511097 T DE59511097 T DE 59511097T DE 59511097 D1 DE59511097 D1 DE 59511097D1
Authority
DE
Germany
Prior art keywords
stereo
mobile radio
radio receiver
pseudo stereo
stereo circuit
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.)
Expired - Lifetime
Application number
DE59511097T
Other languages
German (de)
Inventor
Herbert Hetzel
Harald Schoepp
Christoph Benz
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.)
Harman Becker Automotive Systems GmbH
Original Assignee
Harman Becker Automotive Systems GmbH
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 Harman Becker Automotive Systems GmbH filed Critical Harman Becker Automotive Systems GmbH
Application granted granted Critical
Publication of DE59511097D1 publication Critical patent/DE59511097D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

When a single-channel audio signal is present it is converted into a pseudo-stereo signal and distributed to two loudspeakers by a multiplexing unit. The quality of reception is evaluated by another circuit so that when it falls below a limit of acceptability the system is switched from stereo to mono operation in good time. The multiplex output from the FM tuner is applied to a stereo decoder which addresses a control unit causing the multiplexer to switch the loudspeaker inputs correctly according to the available signal in less than 100 ms.
DE59511097T 1994-11-26 1995-11-21 Pseudo stereo circuit for mobile radio receiver Expired - Lifetime DE59511097D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4442147A DE4442147C2 (en) 1994-11-26 1994-11-26 Mobile radio receiver

Publications (1)

Publication Number Publication Date
DE59511097D1 true DE59511097D1 (en) 2008-10-16

Family

ID=6534239

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4442147A Expired - Lifetime DE4442147C2 (en) 1994-11-26 1994-11-26 Mobile radio receiver
DE59511097T Expired - Lifetime DE59511097D1 (en) 1994-11-26 1995-11-21 Pseudo stereo circuit for mobile radio receiver

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4442147A Expired - Lifetime DE4442147C2 (en) 1994-11-26 1994-11-26 Mobile radio receiver

Country Status (3)

Country Link
EP (1) EP0714222B1 (en)
AT (1) ATE407541T1 (en)
DE (2) DE4442147C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19900819A1 (en) * 1999-01-12 2000-07-13 Bosch Gmbh Robert Prodder for decoding multi-channel distorted radio signals by extracting spatial information from the data signal and recombining this with mono signal data
DE19900818A1 (en) * 1999-01-12 2000-07-13 Bosch Gmbh Robert Method and receiver for suppressing interference in radio reception of multi-channel audio broadcasts
DE10110422A1 (en) * 2001-03-05 2002-09-19 Harman Becker Automotive Sys Method for controlling a multi-channel sound reproduction system and multi-channel sound reproduction system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS598442A (en) * 1982-07-06 1984-01-17 Matsushita Electric Ind Co Ltd Receiver
NL8303945A (en) * 1983-11-17 1985-06-17 Philips Nv DEVICE FOR REALIZING A PSEUDO STEREO SIGNAL.
JPS6146700A (en) * 1984-08-10 1986-03-06 Matsushita Electric Ind Co Ltd Reproducing circuit of pseudo stereo
JPS6374232A (en) * 1986-09-17 1988-04-04 Clarion Co Ltd Stereo receiver
JPS63177635A (en) * 1986-10-29 1988-07-21 Alpine Electron Inc Am receiver
JPS63194438A (en) * 1987-02-09 1988-08-11 Alpine Electron Inc Fm stereo receiver
US4833715A (en) * 1987-03-06 1989-05-23 Alps Electric Co., Ltd. FM stereo receiver
US5056149A (en) * 1987-03-10 1991-10-08 Broadie Richard G Monaural to stereophonic sound translation process and apparatus
JPH03163999A (en) * 1989-08-05 1991-07-15 Matsushita Electric Ind Co Ltd Sound reproducing device
JPH04284725A (en) * 1991-03-14 1992-10-09 Pioneer Electron Corp Rds receiver

Also Published As

Publication number Publication date
ATE407541T1 (en) 2008-09-15
DE4442147A1 (en) 1996-06-13
EP0714222B1 (en) 2008-09-03
EP0714222A2 (en) 1996-05-29
EP0714222A3 (en) 1998-10-14
DE4442147C2 (en) 2002-02-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition