DE3174827D1 - Tone detector circuit - Google Patents

Tone detector circuit

Info

Publication number
DE3174827D1
DE3174827D1 DE8282900456T DE3174827T DE3174827D1 DE 3174827 D1 DE3174827 D1 DE 3174827D1 DE 8282900456 T DE8282900456 T DE 8282900456T DE 3174827 T DE3174827 T DE 3174827T DE 3174827 D1 DE3174827 D1 DE 3174827D1
Authority
DE
Germany
Prior art keywords
detector circuit
tone detector
tone
circuit
detector
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
DE8282900456T
Other languages
German (de)
Inventor
Lawrence Marvin Ecklund
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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
Priority claimed from US06/218,878 external-priority patent/US4405837A/en
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of DE3174827D1 publication Critical patent/DE3174827D1/en
Expired legal-status Critical Current

Links

DE8282900456T 1980-12-22 1981-12-17 Tone detector circuit Expired DE3174827D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/218,878 US4405837A (en) 1980-12-22 1980-12-22 Tone detector circuit
PCT/US1981/001693 WO1982002304A1 (en) 1980-12-22 1981-12-17 Tone detector circuit

Publications (1)

Publication Number Publication Date
DE3174827D1 true DE3174827D1 (en) 1986-07-17

Family

ID=26765079

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282900456T Expired DE3174827D1 (en) 1980-12-22 1981-12-17 Tone detector circuit

Country Status (2)

Country Link
DE (1) DE3174827D1 (en)
HK (1) HK94588A (en)

Also Published As

Publication number Publication date
HK94588A (en) 1988-12-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition