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GB2240689B - An improved three speaker stereo sound system - Google Patents

An improved three speaker stereo sound system

Info

Publication number
GB2240689B
GB2240689B GB9024206A GB9024206A GB2240689B GB 2240689 B GB2240689 B GB 2240689B GB 9024206 A GB9024206 A GB 9024206A GB 9024206 A GB9024206 A GB 9024206A GB 2240689 B GB2240689 B GB 2240689B
Authority
GB
United Kingdom
Prior art keywords
improved
sound system
stereo sound
speaker stereo
speaker
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 - Fee Related
Application number
GB9024206A
Other versions
GB9024206D0 (en
GB2240689A (en
Inventor
Egils Ranga
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9024206D0 publication Critical patent/GB9024206D0/en
Publication of GB2240689A publication Critical patent/GB2240689A/en
Application granted granted Critical
Publication of GB2240689B publication Critical patent/GB2240689B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
GB9024206A 1989-11-07 1990-11-07 An improved three speaker stereo sound system Expired - Fee Related GB2240689B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898925156A GB8925156D0 (en) 1989-11-07 1989-11-07 A three speaker stereo sound system

Publications (3)

Publication Number Publication Date
GB9024206D0 GB9024206D0 (en) 1990-12-19
GB2240689A GB2240689A (en) 1991-08-07
GB2240689B true GB2240689B (en) 1994-06-08

Family

ID=10665890

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898925156A Pending GB8925156D0 (en) 1989-11-07 1989-11-07 A three speaker stereo sound system
GB9024206A Expired - Fee Related GB2240689B (en) 1989-11-07 1990-11-07 An improved three speaker stereo sound system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898925156A Pending GB8925156D0 (en) 1989-11-07 1989-11-07 A three speaker stereo sound system

Country Status (1)

Country Link
GB (2) GB8925156D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9506263D0 (en) * 1995-03-28 1995-05-17 Sse Hire Limited Loudspeaker system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947635A (en) * 1973-09-12 1976-03-30 Frankman Charles W Integrated stereo speaker system
GB2016863A (en) * 1978-03-16 1979-09-26 Akg Akustische Kino Geraete Loudspeaker arrangement
EP0009116A1 (en) * 1978-08-14 1980-04-02 René Dr. Pomeranz Device and method for the electroacoustic reproduction of sound by earphones, as well as a device for transmitting sound vibrations to the human body
GB2082418A (en) * 1980-08-15 1982-03-03 Rola Celestion Ltd Multi-way loudspeaker system
US4443889A (en) * 1980-04-21 1984-04-17 Nortech Laboratories Ltd. Acoustic apparatus and method
US4452333A (en) * 1982-05-28 1984-06-05 Peavey Electronics Corp. Speaker system
US4612663A (en) * 1984-03-26 1986-09-16 Holbrook Kyle A Multichannel audio reproduction system
US4615043A (en) * 1984-12-24 1986-09-30 Don Latshaw Triphonic sound system
US4841573A (en) * 1987-08-31 1989-06-20 Yamaha Corporation Stereophonic signal processing circuit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947635A (en) * 1973-09-12 1976-03-30 Frankman Charles W Integrated stereo speaker system
GB2016863A (en) * 1978-03-16 1979-09-26 Akg Akustische Kino Geraete Loudspeaker arrangement
EP0009116A1 (en) * 1978-08-14 1980-04-02 René Dr. Pomeranz Device and method for the electroacoustic reproduction of sound by earphones, as well as a device for transmitting sound vibrations to the human body
US4443889A (en) * 1980-04-21 1984-04-17 Nortech Laboratories Ltd. Acoustic apparatus and method
GB2082418A (en) * 1980-08-15 1982-03-03 Rola Celestion Ltd Multi-way loudspeaker system
US4452333A (en) * 1982-05-28 1984-06-05 Peavey Electronics Corp. Speaker system
US4612663A (en) * 1984-03-26 1986-09-16 Holbrook Kyle A Multichannel audio reproduction system
US4615043A (en) * 1984-12-24 1986-09-30 Don Latshaw Triphonic sound system
US4841573A (en) * 1987-08-31 1989-06-20 Yamaha Corporation Stereophonic signal processing circuit

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
EBU Review - Technical, No.241-242, June/August 1990, pages 3 to 24 *
J. Audio Eng. Soc., Vol.35 No.7/8, July/August 1987, pages 536 to 549 *
SMPTE Journal, August 1983, pages 843 to 848 *
Wireless World, November 1974, pages 443 to 448 *

Also Published As

Publication number Publication date
GB9024206D0 (en) 1990-12-19
GB2240689A (en) 1991-08-07
GB8925156D0 (en) 1989-12-28

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950918

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19991107