GB2138994B - Sound generating apparatus - Google Patents

Sound generating apparatus

Info

Publication number
GB2138994B
GB2138994B GB08327543A GB8327543A GB2138994B GB 2138994 B GB2138994 B GB 2138994B GB 08327543 A GB08327543 A GB 08327543A GB 8327543 A GB8327543 A GB 8327543A GB 2138994 B GB2138994 B GB 2138994B
Authority
GB
United Kingdom
Prior art keywords
generating apparatus
sound generating
sound
generating
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
Application number
GB08327543A
Other versions
GB2138994A (en
GB8327543D0 (en
Inventor
Robert L Propst
Theodore M Reyda
Travis M Randolph
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.)
MillerKnoll Inc
Original Assignee
Herman Miller Inc
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 Herman Miller Inc filed Critical Herman Miller Inc
Priority to GB08327543A priority Critical patent/GB2138994B/en
Publication of GB8327543D0 publication Critical patent/GB8327543D0/en
Publication of GB2138994A publication Critical patent/GB2138994A/en
Application granted granted Critical
Publication of GB2138994B publication Critical patent/GB2138994B/en
Expired 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/1752—Masking
    • G10K11/1754—Speech masking
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
    • H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
    • 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
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/12—Jamming or countermeasure used for a particular application for acoustic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
    • H04K2203/34—Jamming or countermeasure characterized by the infrastructure components involving multiple cooperating jammers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/60—Jamming involving special techniques
    • H04K3/68—Jamming involving special techniques using passive jamming, e.g. by shielding or reflection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/021—Transducers or their casings adapted for mounting in or to a wall or ceiling

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Otolaryngology (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
GB08327543A 1983-10-14 1983-10-14 Sound generating apparatus Expired GB2138994B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08327543A GB2138994B (en) 1983-10-14 1983-10-14 Sound generating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08327543A GB2138994B (en) 1983-10-14 1983-10-14 Sound generating apparatus

Publications (3)

Publication Number Publication Date
GB8327543D0 GB8327543D0 (en) 1983-11-16
GB2138994A GB2138994A (en) 1984-10-31
GB2138994B true GB2138994B (en) 1985-06-19

Family

ID=10550192

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08327543A Expired GB2138994B (en) 1983-10-14 1983-10-14 Sound generating apparatus

Country Status (1)

Country Link
GB (1) GB2138994B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269959B (en) * 1992-08-19 1996-03-06 Canon Audio Ltd Sound output
AU3078099A (en) * 1998-03-11 1999-09-27 Acentech, Inc. Personal sound masking system
DE102008035181A1 (en) * 2008-06-26 2009-12-31 Zumtobel Lighting Gmbh Method and system for reducing acoustic interference

Also Published As

Publication number Publication date
GB2138994A (en) 1984-10-31
GB8327543D0 (en) 1983-11-16

Similar Documents

Publication Publication Date Title
EP0146933A3 (en) Sound generating apparatus
DE3467265D1 (en) Signal generating device
GB2145908B (en) Stereophonic sound producing apparatus
DE3371952D1 (en) Apparatus for creating sound
GB2141283B (en) Auto-playing apparatus
DE3472286D1 (en) Vacuum generating apparatus
GB2134339B (en) Power generating apparatus
GB2166585B (en) An acoustic apparatus
DE3463306D1 (en) Wave generating apparatus
GB8430487D0 (en) Speaker unit
GB2145189B (en) Vibration limiting apparatus
DE3465053D1 (en) Unstrapping apparatus
GB8409536D0 (en) Well apparatus
GB2141320B (en) Rice-hulling apparatus
GB2102613B (en) Reverberation tone generating apparatus
DE3470862D1 (en) Polisher-finer apparatus
EP0147791A3 (en) Dual-tone multiple-frequency-signal generating apparatus
GB2141063B (en) Redrawing-ironing apparatus
GB2144572B (en) Tone generating apparatus
GB8410073D0 (en) Picture generating apparatus
DE3469141D1 (en) Workpiece-handling apparatus
EP0322871A3 (en) Effect tone generating apparatus
EP0127859A3 (en) Vibration generating apparatus
GB2138994B (en) Sound generating apparatus
DE3469606D1 (en) Photographic-copying apparatus

Legal Events

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