FR2307423A1 - Procede et disposition de montage d'evaluation de signaux de sequence sonore - Google Patents
Procede et disposition de montage d'evaluation de signaux de sequence sonoreInfo
- Publication number
- FR2307423A1 FR2307423A1 FR7610288A FR7610288A FR2307423A1 FR 2307423 A1 FR2307423 A1 FR 2307423A1 FR 7610288 A FR7610288 A FR 7610288A FR 7610288 A FR7610288 A FR 7610288A FR 2307423 A1 FR2307423 A1 FR 2307423A1
- Authority
- FR
- France
- Prior art keywords
- frequency
- resonance frequency
- switching transistor
- repetition
- tone signal
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/022—Selective call receivers
- H04W88/025—Selective call decoders
- H04W88/027—Selective call decoders using frequency address codes
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
- G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/12—Electric signal transmission systems in which the signal transmitted is frequency or phase of ac
- G08C19/14—Electric signal transmission systems in which the signal transmitted is frequency or phase of ac using combination of fixed frequencies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752515265 DE2515265B1 (de) | 1975-04-08 | 1975-04-08 | Verfahren und Schaltungsanordnung zur Auswertung von Folgetonsignalen |
DE19762612331 DE2612331C2 (de) | 1976-03-23 | 1976-03-23 | Verfahren und Schaltungsanordnung zur Auswertung von Folgetonsignalen |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2307423A1 true FR2307423A1 (fr) | 1976-11-05 |
FR2307423B1 FR2307423B1 (zh) | 1979-04-20 |
Family
ID=25768731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7610288A Granted FR2307423A1 (fr) | 1975-04-08 | 1976-04-08 | Procede et disposition de montage d'evaluation de signaux de sequence sonore |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT343213B (zh) |
CH (1) | CH593527A5 (zh) |
FR (1) | FR2307423A1 (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766523A (en) * | 1972-10-04 | 1973-10-16 | Motorola Inc | Sequential tone signalling system |
FR2205779A1 (zh) * | 1972-11-07 | 1974-05-31 | Motorola Inc | |
FR2220953A1 (zh) * | 1973-03-07 | 1974-10-04 | Bosch Elektronik Gmbh |
-
1976
- 1976-04-05 AT AT245276A patent/AT343213B/de not_active IP Right Cessation
- 1976-04-07 CH CH437176A patent/CH593527A5/xx not_active IP Right Cessation
- 1976-04-08 FR FR7610288A patent/FR2307423A1/fr active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3766523A (en) * | 1972-10-04 | 1973-10-16 | Motorola Inc | Sequential tone signalling system |
FR2205779A1 (zh) * | 1972-11-07 | 1974-05-31 | Motorola Inc | |
FR2220953A1 (zh) * | 1973-03-07 | 1974-10-04 | Bosch Elektronik Gmbh |
Also Published As
Publication number | Publication date |
---|---|
AT343213B (de) | 1978-05-10 |
ATA245276A (de) | 1977-09-15 |
CH593527A5 (zh) | 1977-12-15 |
FR2307423B1 (zh) | 1979-04-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |