GB2299238B - Loudspeaker and loudspeaker system - Google Patents

Loudspeaker and loudspeaker system

Info

Publication number
GB2299238B
GB2299238B GB9505756A GB9505756A GB2299238B GB 2299238 B GB2299238 B GB 2299238B GB 9505756 A GB9505756 A GB 9505756A GB 9505756 A GB9505756 A GB 9505756A GB 2299238 B GB2299238 B GB 2299238B
Authority
GB
United Kingdom
Prior art keywords
loudspeaker
loudspeaker system
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
GB9505756A
Other versions
GB2299238A (en
GB9505756D0 (en
Inventor
Ian Twemlow
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.)
AUDIX COMMUNICATIONS Ltd
Original Assignee
AUDIX COMMUNICATIONS Ltd
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 AUDIX COMMUNICATIONS Ltd filed Critical AUDIX COMMUNICATIONS Ltd
Priority to GB9505756A priority Critical patent/GB2299238B/en
Publication of GB9505756D0 publication Critical patent/GB9505756D0/en
Publication of GB2299238A publication Critical patent/GB2299238A/en
Application granted granted Critical
Publication of GB2299238B publication Critical patent/GB2299238B/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
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/007—Monitoring arrangements; Testing arrangements for public address systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Alarm Systems (AREA)
GB9505756A 1995-03-22 1995-03-22 Loudspeaker and loudspeaker system Expired - Fee Related GB2299238B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9505756A GB2299238B (en) 1995-03-22 1995-03-22 Loudspeaker and loudspeaker system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9505756A GB2299238B (en) 1995-03-22 1995-03-22 Loudspeaker and loudspeaker system

Publications (3)

Publication Number Publication Date
GB9505756D0 GB9505756D0 (en) 1995-05-10
GB2299238A GB2299238A (en) 1996-09-25
GB2299238B true GB2299238B (en) 1997-06-11

Family

ID=10771626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9505756A Expired - Fee Related GB2299238B (en) 1995-03-22 1995-03-22 Loudspeaker and loudspeaker system

Country Status (1)

Country Link
GB (1) GB2299238B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9813882D0 (en) * 1998-06-27 1998-08-26 Protec Fire Detection Plc Public address system having zone isolator circuits
GB2432091B (en) * 2005-10-20 2009-06-17 Protec Fire Detection Plc Improvements to a public address system having zone isolator circuits
DE102008057437B4 (en) * 2008-11-14 2012-08-30 Gräf & Meyer GmbH Apparatus and method for short circuit isolation in speaker ring lines of electroacoustic installations
CN102487471A (en) * 2010-12-01 2012-06-06 鸿富锦精密工业（深圳）有限公司 Electronic device
GB201318919D0 (en) 2013-10-25 2013-12-11 Isis Innovation Compact microscope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093822A (en) * 1976-04-08 1978-06-06 Dual Gebruder Steidinger Loudspeaker protection circuit
US4100380A (en) * 1976-03-12 1978-07-11 Federal Signal Corporation Supervisory circuit for monitoring speaker coils

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100380A (en) * 1976-03-12 1978-07-11 Federal Signal Corporation Supervisory circuit for monitoring speaker coils
US4093822A (en) * 1976-04-08 1978-06-06 Dual Gebruder Steidinger Loudspeaker protection circuit

Also Published As

Publication number Publication date
GB2299238A (en) 1996-09-25
GB9505756D0 (en) 1995-05-10

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Legal Events

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

Effective date: 20020322