JPS566592A - Direction changing device of speaker system - Google Patents

Direction changing device of speaker system

Info

Publication number
JPS566592A
JPS566592A JP8173479A JP8173479A JPS566592A JP S566592 A JPS566592 A JP S566592A JP 8173479 A JP8173479 A JP 8173479A JP 8173479 A JP8173479 A JP 8173479A JP S566592 A JPS566592 A JP S566592A
Authority
JP
Japan
Prior art keywords
listener
supplied
speaker
optimum
comparator
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.)
Pending
Application number
JP8173479A
Other languages
Japanese (ja)
Inventor
Katsuaki Tsurushima
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP8173479A priority Critical patent/JPS566592A/en
Publication of JPS566592A publication Critical patent/JPS566592A/en
Pending 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To ensure the stereo listening in the optimum state at all times, by receiving the electric waves transmitted with the operation of the listener and then turning the speaker to the listener's optimum direction. CONSTITUTION:The electric waves transmitted with listener's operation of transmitter 5 are received by antennas 6a and 6b provided at the side of speakers 1a and 1b each. The antenna has the different sensitivity according to the wave arriving direction, and the output generated from the antenna with reception of the electric wave is mixed with the signal of local oscillator 10 at frequency converting circuit 9. And this mixture of the output and the signal is supplied to intermediate frequency amplifier circuit 11 and then detected through detecting circuit 12 to be supplied to comparator 13. Reference voltage V2 of reference voltage source 14 is supplied to comparator 13, and the comparison result shows the deviation of the speaker from the standard direction. This comparison output drives motor 16 via amplifier 15 to set the speaker toward the optimum direction.
JP8173479A 1979-06-28 1979-06-28 Direction changing device of speaker system Pending JPS566592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8173479A JPS566592A (en) 1979-06-28 1979-06-28 Direction changing device of speaker system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8173479A JPS566592A (en) 1979-06-28 1979-06-28 Direction changing device of speaker system

Publications (1)

Publication Number Publication Date
JPS566592A true JPS566592A (en) 1981-01-23

Family

ID=13754649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8173479A Pending JPS566592A (en) 1979-06-28 1979-06-28 Direction changing device of speaker system

Country Status (1)

Country Link
JP (1) JPS566592A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6449000U (en) * 1987-09-18 1989-03-27
JPH02164200A (en) * 1988-12-19 1990-06-25 Matsushita Electric Ind Co Ltd Motor-driven speaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6449000U (en) * 1987-09-18 1989-03-27
JPH02164200A (en) * 1988-12-19 1990-06-25 Matsushita Electric Ind Co Ltd Motor-driven speaker

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