CH473430A - Security alarm system with a transmitter and a receiver for coded signals - Google Patents
Security alarm system with a transmitter and a receiver for coded signalsInfo
- Publication number
- CH473430A CH473430A CH941667A CH941667A CH473430A CH 473430 A CH473430 A CH 473430A CH 941667 A CH941667 A CH 941667A CH 941667 A CH941667 A CH 941667A CH 473430 A CH473430 A CH 473430A
- Authority
- CH
- Switzerland
- Prior art keywords
- transmitter
- receiver
- alarm system
- coded signals
- security alarm
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Burglar Alarm Systems (AREA)
- Electromechanical Clocks (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB29982/66A GB1118525A (en) | 1966-07-04 | 1966-07-04 | Improvements relating to the transmission of radio frequency coded pulses |
Publications (1)
Publication Number | Publication Date |
---|---|
CH473430A true CH473430A (en) | 1969-05-31 |
Family
ID=10300351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH941667A CH473430A (en) | 1966-07-04 | 1967-07-03 | Security alarm system with a transmitter and a receiver for coded signals |
Country Status (6)
Country | Link |
---|---|
US (1) | US3568154A (en) |
CH (1) | CH473430A (en) |
DE (1) | DE1293652B (en) |
GB (1) | GB1118525A (en) |
NL (1) | NL6709267A (en) |
SE (1) | SE335873B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4095211A (en) * | 1975-07-31 | 1978-06-13 | The Stanley Works | Coded electronic security system |
US4027276A (en) * | 1975-07-31 | 1977-05-31 | The Stanley Works | Transmitter for a coded electronic security system |
US4020477A (en) * | 1975-11-10 | 1977-04-26 | American District Telegraph Company | Radio central station alarm system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3053478A (en) * | 1945-12-28 | 1962-09-11 | Lee L Davenport | System for controlling and guiding missiles |
US2552013A (en) * | 1947-04-22 | 1951-05-08 | Gen Railway Signal Co | Pulse duration discriminator |
US2970301A (en) * | 1958-01-21 | 1961-01-31 | Robert W Rochelle | Telemetering system |
US3208045A (en) * | 1960-12-22 | 1965-09-21 | Standard Kollsman Ind Inc | Remote interrogation decoding circuitry |
-
0
- DE DENDAT1293652D patent/DE1293652B/en not_active Withdrawn
-
1966
- 1966-07-04 GB GB29982/66A patent/GB1118525A/en not_active Expired
-
1967
- 1967-06-28 SE SE09509/67*A patent/SE335873B/xx unknown
- 1967-06-30 US US650446A patent/US3568154A/en not_active Expired - Lifetime
- 1967-07-03 CH CH941667A patent/CH473430A/en not_active IP Right Cessation
- 1967-07-04 NL NL6709267A patent/NL6709267A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
SE335873B (en) | 1971-06-14 |
GB1118525A (en) | 1968-07-03 |
NL6709267A (en) | 1968-01-05 |
US3568154A (en) | 1971-03-02 |
DE1293652B (en) | 1969-04-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |