CA2140679C - Circuit de sonnerie pour telephone portatif - Google Patents

Circuit de sonnerie pour telephone portatif

Info

Publication number: CA2140679C
Authority: CA; Canada
Prior art keywords: signal; mode; ringing; telephone set; circuit
Prior art date: 1990-01-31
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 - Fee Related

Application number

CA002140679A

Other languages

English (en)

Other versions

CA2140679A1 (fr

Inventor

Nobuhisa Shinozaki

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.)

NEC Corp

Original Assignee

NEC 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.)

1990-01-31

Filing date

1991-01-31

Publication date

1997-10-14

1991-01-31 Application filed by NEC Corp filed Critical NEC Corp

1991-01-31 Priority claimed from CA002035411A external-priority patent/CA2035411C/fr

1991-08-01 Publication of CA2140679A1 publication Critical patent/CA2140679A1/fr

1997-10-14 Application granted granted Critical

1997-10-14 Publication of CA2140679C publication Critical patent/CA2140679C/fr

2011-01-31 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

238000001514 detection method Methods 0.000 claims description 17
230000004044 response Effects 0.000 claims description 12
238000001228 spectrum Methods 0.000 abstract description 11
238000010586 diagram Methods 0.000 description 6
238000010276 construction Methods 0.000 description 3
238000000034 method Methods 0.000 description 2
XUKUURHRXDUEBC-KAYWLYCHSA-N Atorvastatin Chemical compound C=1C=CC=CC=1C1=C(C=2C=CC(F)=CC=2)N(CC[C@@H](O)C[C@@H](O)CC(O)=O)C(C(C)C)=C1C(=O)NC1=CC=CC=C1 XUKUURHRXDUEBC-KAYWLYCHSA-N 0.000 description 1
241001547070 Eriodes Species 0.000 description 1
101150087426 Gnal gene Proteins 0.000 description 1
208000003251 Pruritus Diseases 0.000 description 1
241000149010 Thespea Species 0.000 description 1
230000007803 itching Effects 0.000 description 1
108090000623 proteins and genes Proteins 0.000 description 1
238000005096 rolling process Methods 0.000 description 1

Landscapes

Mobile Radio Communication Systems (AREA)

CA002140679A 1990-01-31 1991-01-31 Circuit de sonnerie pour telephone portatif Expired - Fee Related CA2140679C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP21233/1990		1990-01-31
JP2123390		1990-01-31
CA002035411A CA2035411C (fr)	1990-01-31	1991-01-31	Circuit de sonnerie pour poste telephonique portatif

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002035411A Division CA2035411C (fr)	1990-01-31	1991-01-31	Circuit de sonnerie pour poste telephonique portatif

Publications (2)

Publication Number	Publication Date
CA2140679A1 CA2140679A1 (fr)	1991-08-01
CA2140679C true CA2140679C (fr)	1997-10-14

Family

ID=25674466

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
CA002140679A Expired - Fee Related CA2140679C (fr)	1990-01-31	1991-01-31	Circuit de sonnerie pour telephone portatif
CA002140680A Expired - Fee Related CA2140680C (fr)	1990-01-31	1991-01-31	Circuit de sonnerie pour telephone portatif

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
CA002140680A Expired - Fee Related CA2140680C (fr)	1990-01-31	1991-01-31	Circuit de sonnerie pour telephone portatif

Country Status (1)

Country	Link
CA (2)	CA2140679C (fr)

1991
- 1991-01-31 CA CA002140679A patent/CA2140679C/fr not_active Expired - Fee Related
- 1991-01-31 CA CA002140680A patent/CA2140680C/fr not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CA2140679A1 (fr)	1991-08-01
CA2140680C (fr)	1997-02-18
CA2140680A1 (fr)	1991-08-01

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Legal Events

Date	Code	Title	Description
1995-01-20	EEER	Examination request
2003-01-31	MKLA	Lapsed