JPS5313810A - Audio frequency signal telephone receiver - Google Patents

Audio frequency signal telephone receiver

Info

Publication number: JPS5313810A
Authority: JP; Japan
Prior art keywords: frequency signal; audio frequency; telephone receiver; signal telephone; receiver
Prior art date: 1976-07-20
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

JP8616077A

Other languages

English (en)

Japanese (ja)

Inventor

Batsukaa Piitaa

Fuiritsupusu Maato Yan

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.)

1976-07-20

Filing date

1977-07-20

Publication date

1978-02-07

1977-07-20 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1978-02-07 Publication of JPS5313810A publication Critical patent/JPS5313810A/ja

Status Pending legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/46—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies comprising means for distinguishing between a signalling current of predetermined frequency and a complex current containing that frequency, e.g. speech current

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

JP8616077A 1976-07-20 1977-07-20 Audio frequency signal telephone receiver Pending JPS5313810A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7608047A NL7608047A (nl)	1976-07-20	1976-07-20	Ontvanginrichting voor toonfrequente tekens.

Publications (1)

Publication Number	Publication Date
JPS5313810A true JPS5313810A (en)	1978-02-07

Family

ID=19826629

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP8616077A Pending JPS5313810A (en)	1976-07-20	1977-07-20	Audio frequency signal telephone receiver

Country Status (7)

Country	Link
JP (1)	JPS5313810A (fr)
BE (1)	BE856903A (fr)
BR (1)	BR7704723A (fr)
DE (1)	DE2730453A1 (fr)
FR (1)	FR2359561A1 (fr)
NL (1)	NL7608047A (fr)
SE (1)	SE7708218L (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4696031A (en) *	1985-12-31	1987-09-22	Wang Laboratories, Inc.	Signal detection and discrimination using waveform peak factor

1976
- 1976-07-20 NL NL7608047A patent/NL7608047A/xx unknown
1977
- 1977-07-06 DE DE19772730453 patent/DE2730453A1/de active Pending
- 1977-07-15 SE SE7708218A patent/SE7708218L/xx not_active Application Discontinuation
- 1977-07-18 BE BE179426A patent/BE856903A/fr unknown
- 1977-07-18 BR BR7704723A patent/BR7704723A/pt unknown
- 1977-07-19 FR FR7722066A patent/FR2359561A1/fr not_active Withdrawn
- 1977-07-20 JP JP8616077A patent/JPS5313810A/ja active Pending

Also Published As

Publication number	Publication date
FR2359561A1 (fr)	1978-02-17
DE2730453A1 (de)	1978-01-26
SE7708218L (sv)	1978-01-21
BR7704723A (pt)	1978-05-16
BE856903A (fr)	1978-01-18
NL7608047A (nl)	1978-01-24

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