Patent EP0011444A2 successfully refreshed from Google Patents.
EP0011444A2
Expired / Lapsed
EP
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Security system
Assignee: Individual
•
Filing: 1979-11-08
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Granted: —
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Expires: 1999-11-08
Abstract
Abstract The system is especially intended to protect commercial motor vehicles, and provides in each vehicle at least one sensor (1') for instance, sensing, when activated, intrusion in or movement of the vehicle, connected to a memory (1) storing predetermined data relating to the vehicle e.g. registration number, load being carried and intended destination. The memory is arranged automatically to feed out the relevant data when the sensor is actuated by the intrusion or movement of the vehicle. This data is then fed to a radio frequency modulator (2) comprising a multiplexer and the modulated carrier is fed to a transmitter (3). The sensor, memory, modulator and transmitter are all provided in each vehicle. The transmitter automatically transmits the data to a relay (8), and the relay automatically transmits to a central receiver (10) which via a demodulator demultiplexer (13) operates a V.D.U (visual display unit 14) so that appropriate action can be taken in response to the received data.
Inventors
- 👤 William Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 19:51
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/10; B60R25/102; G; G08; G08B; G08B25/00; G08B25/01; G08B25/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
125 words
A security system comprising a memory sited at a location to be monitored, holding predetermined data relating to the location, a sensor associated with the memory, the memory being arranged automatically to provide a read-out of the data on actuation of the sensor in response to the occurrence of a specified event, and a remote indicator unit to receive a memory read-out and provide an indication of the nature thereof; characterized in that a transmission link (103, 104; 4, 9, 10) is provided to transmit data read-out from the memory (102,1) to the indicator (105,14); the link comprising a data transmitter (103,3) located at said location, and a receiver (104, 9, 10) for transmitted data located at the site of indicator to feed data. thereto.
Claim 2
Dependent Claim
125 words
A security system comprising a memory sited at a location to be monitored, holding predetermined data relating to the location, a sensor associated with the memory, the memory being arranged automatically to provide a read-out of the data on actuation of the sensor in response to the occurrence of a specified event, and a remote indicator unit to receive a memory read-out and provide an indication of the nature thereof; characterized in that a transmission link (103, 104; 4, 9, 10) is provided to transmit data read-out from the memory (102,1) to the indicator (105,14); the link comprising a data transmitter (103,3) located at said location, and a receiver (104, 9, 10) for transmitted data located at the site of indicator to feed data. thereto.
Claim 3
Dependent Claim
28 words
A security system as claimed in claim 1, characterized in that said transmitter (103, 3) and receiver (104; 9,10) are constituted as a radio transmitter and receiver respectively.
Claim 4
Dependent Claim
36 words
A security system as claimed in.claim 1, characterized in that a relay (18) is provided remotely located from said receiver (9,10) to relay a transmission from said transmitter (3) and relay it to said receiver (9,10).
Claim 5
Dependent Claim
95 words
A security system as claimed in any of the preceding claims, characterized in that a plurality of memories are used at respective locations to be monitored or protected each with associated transmitter, (103, 3 ) and an associated sensor (101,1') Or sensors to detect a given condition, and each memory (102, 1) stores a predetermined message in respect of each given condition indicating the occurrence thereof; the actuation of a sensor of any memory causing an automatic read-out of the respective message from the memory and thereby its transmission to said indicator unit (105, 14).
Claim 6
Dependent Claim
40 words
A security system as claimed in claim 4, characterized in that, the transmitter (3) comprises a multiplexer (2), and the receiver (9,10) comprises a demultiplexer (13) whereby the transmission may be made, for instance, by time sharing or frequency shift.
Claim 7
Dependent Claim
65 words
A security system as claimed in any of the preceding claims, characterized in that, the system comprises, in respect of the or each location, a communication channel (5,6) to permit a transmission to be made otherwise than from the memory (1) so that the system may additionally be used as a means of routine communication between the site of the memory and the receiver (104).
Claim 8
Dependent Claim
36 words
A security system as claimed in claim 6, characterized in that, the additional communication channel (5,6) comprises a manual data encoder (5) operating through a random access memory (6) of feed data to the transmitter (3).
Claim 9
Dependent Claim
24 words
A security system as claimed in any of the preceding claims, characterized in that the indicator unit (14) is a V.D.U (visual display unit).
Claim 10
Dependent Claim
26 words
A security system as claimed in any of the preceding claims, characterized in that the or each memory is an addressable, programmable read only memory (1).
Claim 11
Dependent Claim
25 words
A security system as claimed in claim 9, characterized in that the store (15) is provided and is arranged automatically to store any displayed message.
References Cited (Backward Citations)
No citation records indexed.
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