FR2237386A1 - Remote listening appts. for TV receiver - cordless method uses ultrasonic auxiliary signal - Google Patents

Remote listening appts. for TV receiver - cordless method uses ultrasonic auxiliary signal

Info

Publication number
FR2237386A1
FR2237386A1 FR7423985A FR7423985A FR2237386A1 FR 2237386 A1 FR2237386 A1 FR 2237386A1 FR 7423985 A FR7423985 A FR 7423985A FR 7423985 A FR7423985 A FR 7423985A FR 2237386 A1 FR2237386 A1 FR 2237386A1
Authority
FR
France
Prior art keywords
receiver
appts
auxiliary signal
method uses
uses ultrasonic
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.)
Withdrawn
Application number
FR7423985A
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2237386A1 publication Critical patent/FR2237386A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves

Abstract

A method of transmitting a sound signal from a television set to a reproduction unit, particularly headphones, uses an auxiliary signal. The sound signal is used to modulate a higher frequency carrier in the receiver which is transmitted as an ultrasonic signal. A detector for this signal may be mounted in a headphone unit or fastened to the viewer's clothing.
FR7423985A 1973-07-11 1974-07-10 Remote listening appts. for TV receiver - cordless method uses ultrasonic auxiliary signal Withdrawn FR2237386A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732335210 DE2335210A1 (en) 1973-07-11 1973-07-11 WIRELESS AUDIO SIGNAL TRANSFER FROM THE TELEVISION RECEIVER TO THE VIEWER

Publications (1)

Publication Number Publication Date
FR2237386A1 true FR2237386A1 (en) 1975-02-07

Family

ID=5886546

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7423985A Withdrawn FR2237386A1 (en) 1973-07-11 1974-07-10 Remote listening appts. for TV receiver - cordless method uses ultrasonic auxiliary signal

Country Status (7)

Country Link
JP (1) JPS5039822A (en)
AU (1) AU7094474A (en)
BE (1) BE817457A (en)
DE (1) DE2335210A1 (en)
FR (1) FR2237386A1 (en)
IT (1) IT1014486B (en)
NL (1) NL7409190A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010155A1 (en) * 1993-10-05 1995-04-13 Franz Hoersch Television receiver
WO1998059525A2 (en) * 1997-06-24 1998-12-30 Be4 Ltd. System for producing an artificial sound environment

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5613037B2 (en) * 1972-02-14 1981-03-25
DE2841680C3 (en) * 1978-09-25 1981-03-26 Sennheiser Electronic Kg, 30900 Wedemark Wireless transmission method for sound signals that works by means of ultrasound and a receiving device for carrying out the method
WO1984001479A1 (en) * 1982-10-04 1984-04-12 Stuart David Saunders Signal reproduction apparatus
AU576479B2 (en) * 1982-10-04 1988-09-01 Stuart David Saunders Signal reproduction apparatus with wireless remote speakers
CA2141138A1 (en) * 1992-09-03 1994-03-17 Melvin Clarkson Suspended beverage infusion bag
EP0679354B1 (en) * 1994-04-30 1998-09-23 Brigitte Büttner-Windemuth Fillable tea bag
US5605710A (en) * 1994-06-06 1997-02-25 Marathon Partners Single cup disposable coffee brewing device
JP3664574B2 (en) * 1997-02-21 2005-06-29 キーコーヒー株式会社 Taste beverage extraction bag with cup-mounted support

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010155A1 (en) * 1993-10-05 1995-04-13 Franz Hoersch Television receiver
WO1998059525A2 (en) * 1997-06-24 1998-12-30 Be4 Ltd. System for producing an artificial sound environment
WO1998059525A3 (en) * 1997-06-24 1999-03-18 Be4 Ltd System for producing an artificial sound environment
US6975731B1 (en) 1997-06-24 2005-12-13 Beh Ltd. System for producing an artificial sound environment

Also Published As

Publication number Publication date
NL7409190A (en) 1975-01-14
AU7094474A (en) 1976-01-08
BE817457A (en) 1975-01-09
JPS5039822A (en) 1975-04-12
IT1014486B (en) 1977-04-20
DE2335210A1 (en) 1975-01-30

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Legal Events

Date Code Title Description
ST Notification of lapse