IT1251350B - DETECTION CIRCUIT OF MOMENTARY SIGNALS OF SWITCHING HOOKS - Google Patents

DETECTION CIRCUIT OF MOMENTARY SIGNALS OF SWITCHING HOOKS

Info

Publication number: IT1251350B
Authority: IT; Italy
Prior art keywords: detection circuit; momentary signals; hooks; switching; switching hooks
Prior art date: 1989-06-22

Application number

IT02073590A

Other languages

Italian (it)

Other versions

IT9020735A0 (en

IT9020735A1 (en

Inventor

Jim Pinard

Ron Kennedy

Original Assignee

Mitel 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.)

1989-06-22

Filing date

1990-06-22

Publication date

1995-05-08

1990-06-22 Application filed by Mitel Corp filed Critical Mitel Corp

1990-06-22 Publication of IT9020735A0 publication Critical patent/IT9020735A0/en

1990-12-23 Publication of IT9020735A1 publication Critical patent/IT9020735A1/en

1995-05-08 Application granted granted Critical

1995-05-08 Publication of IT1251350B publication Critical patent/IT1251350B/en

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
- H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses
- H04Q1/36—Pulse-correcting arrangements, e.g. for reducing effects due to interference

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Electronic Switches (AREA)
Analogue/Digital Conversion (AREA)

IT02073590A 1989-06-22 1990-06-22 DETECTION CIRCUIT OF MOMENTARY SIGNALS OF SWITCHING HOOKS IT1251350B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA000603683A CA1336446C (en)	1989-06-22	1989-06-22	Switch hook flash detection circuit

Publications (3)

Publication Number	Publication Date
IT9020735A0 IT9020735A0 (en)	1990-06-22
IT9020735A1 IT9020735A1 (en)	1990-12-23
IT1251350B true IT1251350B (en)	1995-05-08

Family

ID=4140245

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT02073590A IT1251350B (en)	1989-06-22	1990-06-22	DETECTION CIRCUIT OF MOMENTARY SIGNALS OF SWITCHING HOOKS

Country Status (4)

Country	Link
CA (1)	CA1336446C (en)
DE (1)	DE4019438A1 (en)
GB (1)	GB2233534B (en)
IT (1)	IT1251350B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5465256A (en) *	1993-12-23	1995-11-07	Krone Ag	Telephone cross connect status signal pre-processor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1372183A (en) *	1970-08-03	1974-10-30	Aei Telecommunications Canada	Digital impulse corrector
US3766323A (en) *	1971-02-24	1973-10-16	Itt	Digital dial pulse distortion corrector
NL7406433A (en) *	1974-05-14	1975-11-18	Bell Telephone Mfg	SIGNAL CHAIN FOR A SIGNAL WITH TWO LEVELS.
DE3239935C2 (en) *	1982-10-28	1986-10-30	Philips Kommunikations Industrie AG, 8500 Nürnberg	Circuit arrangement for converting an input signal with bruises into bounce-free output signals

1989
- 1989-06-22 CA CA000603683A patent/CA1336446C/en not_active Expired - Fee Related
1990
- 1990-06-19 DE DE4019438A patent/DE4019438A1/en not_active Ceased
- 1990-06-22 GB GB9013980A patent/GB2233534B/en not_active Expired - Fee Related
- 1990-06-22 IT IT02073590A patent/IT1251350B/en active IP Right Grant

Also Published As

Publication number	Publication date
IT9020735A0 (en)	1990-06-22
IT9020735A1 (en)	1990-12-23
GB2233534A (en)	1991-01-09
DE4019438A1 (en)	1991-04-25
GB2233534B (en)	1994-02-02
CA1336446C (en)	1995-07-25
GB9013980D0 (en)	1990-08-15

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Legal Events

Date	Code	Title	Description
1995-05-08	0001	Granted
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19960628