EP0714222A3 - Pseudostereo processor for mobile receiver - Google Patents

Pseudostereo processor for mobile receiver Download PDF

Info

Publication number
EP0714222A3
EP0714222A3 EP95118291A EP95118291A EP0714222A3 EP 0714222 A3 EP0714222 A3 EP 0714222A3 EP 95118291 A EP95118291 A EP 95118291A EP 95118291 A EP95118291 A EP 95118291A EP 0714222 A3 EP0714222 A3 EP 0714222A3
Authority
EP
European Patent Office
Prior art keywords
stereo
pseudostereo
processor
mobile receiver
signal
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.)
Granted
Application number
EP95118291A
Other languages
German (de)
French (fr)
Other versions
EP0714222B1 (en
EP0714222A2 (en
Inventor
Herbert Hetzel
Harald Schöpp
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
Becker 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 Becker GmbH filed Critical Becker GmbH
Publication of EP0714222A2 publication Critical patent/EP0714222A2/en
Publication of EP0714222A3 publication Critical patent/EP0714222A3/en
Application granted granted Critical
Publication of EP0714222B1 publication Critical patent/EP0714222B1/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

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.
EP95118291A 1994-11-26 1995-11-21 Pseudostereo processor for mobile receiver Expired - Lifetime EP0714222B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4442147A DE4442147C2 (en) 1994-11-26 1994-11-26 Mobile radio receiver
DE4442147 1994-11-26

Publications (3)

Publication Number Publication Date
EP0714222A2 EP0714222A2 (en) 1996-05-29
EP0714222A3 true EP0714222A3 (en) 1998-10-14
EP0714222B1 EP0714222B1 (en) 2008-09-03

Family

ID=6534239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118291A Expired - Lifetime EP0714222B1 (en) 1994-11-26 1995-11-21 Pseudostereo processor for mobile 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142213A1 (en) * 1983-11-17 1985-05-22 Koninklijke Philips Electronics N.V. Apparatus for generating a pseudo-stereo signal
JPS63177635A (en) * 1986-10-29 1988-07-21 Alpine Electron Inc Am receiver
US4833715A (en) * 1987-03-06 1989-05-23 Alps Electric Co., Ltd. FM stereo receiver
EP0412725A2 (en) * 1989-08-05 1991-02-13 Matsushita Electric Industrial Co., Ltd. Sound reproduction apparatus
EP0503154A2 (en) * 1991-03-14 1992-09-16 Pioneer Electronic Corporation RDS receiver

Family Cites Families (5)

* 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
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
JPS63194438A (en) * 1987-02-09 1988-08-11 Alpine Electron Inc Fm stereo receiver
US5056149A (en) * 1987-03-10 1991-10-08 Broadie Richard G Monaural to stereophonic sound translation process and apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142213A1 (en) * 1983-11-17 1985-05-22 Koninklijke Philips Electronics N.V. Apparatus for generating a pseudo-stereo signal
JPS63177635A (en) * 1986-10-29 1988-07-21 Alpine Electron Inc Am receiver
US4833715A (en) * 1987-03-06 1989-05-23 Alps Electric Co., Ltd. FM stereo receiver
EP0412725A2 (en) * 1989-08-05 1991-02-13 Matsushita Electric Industrial Co., Ltd. Sound reproduction apparatus
EP0503154A2 (en) * 1991-03-14 1992-09-16 Pioneer Electronic Corporation RDS receiver

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 449 (E - 686) 25 November 1988 (1988-11-25) *

Also Published As

Publication number Publication date
DE4442147A1 (en) 1996-06-13
DE59511097D1 (en) 2008-10-16
DE4442147C2 (en) 2002-02-14
EP0714222B1 (en) 2008-09-03
EP0714222A2 (en) 1996-05-29
ATE407541T1 (en) 2008-09-15

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