GB0419521D0 - Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems - Google Patents

Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems

Info

Publication number
GB0419521D0
GB0419521D0 GBGB0419521.0A GB0419521A GB0419521D0 GB 0419521 D0 GB0419521 D0 GB 0419521D0 GB 0419521 A GB0419521 A GB 0419521A GB 0419521 D0 GB0419521 D0 GB 0419521D0
Authority
GB
United Kingdom
Prior art keywords
sound
relating
recording
transmission
reproducing systems
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
GBGB0419521.0A
Other versions
GB2417870B (en
GB2417870A (en
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.)
ROGERS ANGELA M
Rogers John D M
Original Assignee
ROGERS ANGELA M
Rogers John D M
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 ROGERS ANGELA M, Rogers John D M filed Critical ROGERS ANGELA M
Priority to GB0419521A priority Critical patent/GB2417870B/en
Publication of GB0419521D0 publication Critical patent/GB0419521D0/en
Publication of GB2417870A publication Critical patent/GB2417870A/en
Application granted granted Critical
Publication of GB2417870B publication Critical patent/GB2417870B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R9/16—Gramophone pick-ups using a stylus; Recorders using a stylus signals recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R11/12—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Stereophonic System (AREA)
GB0419521A 2004-09-02 2004-09-02 Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems Expired - Fee Related GB2417870B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0419521A GB2417870B (en) 2004-09-02 2004-09-02 Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0419521A GB2417870B (en) 2004-09-02 2004-09-02 Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems

Publications (3)

Publication Number Publication Date
GB0419521D0 true GB0419521D0 (en) 2004-10-06
GB2417870A GB2417870A (en) 2006-03-08
GB2417870B GB2417870B (en) 2009-03-18

Family

ID=33155934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0419521A Expired - Fee Related GB2417870B (en) 2004-09-02 2004-09-02 Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems

Country Status (1)

Country Link
GB (1) GB2417870B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2934673B2 (en) * 1989-05-29 1999-08-16 オンキヨー株式会社 In-vehicle 4-channel stereo playback device
JP3703606B2 (en) * 1997-07-09 2005-10-05 日本電信電話株式会社 Sound playback device
JP2003047097A (en) * 2001-07-31 2003-02-14 Matsushita Electric Ind Co Ltd Sound reproducing system

Also Published As

Publication number Publication date
GB2417870B (en) 2009-03-18
GB2417870A (en) 2006-03-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170902