EP0306598A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electronically programmable remote control access systems
Assignee: Clifford Electronics Inc
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Filing: 1988-02-08
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Granted: —
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Expires: 2008-02-08
Abstract
Abstract A remote control access system (A) which may be in the form of a security system or a convenience system for buildings and vehicles to thereby enable access opening and closing of buildings and vehicles. The system is operable on a remote control basis and comprises one or more hand held remote transmitters (10) and a receiver unit (12) located at or near the building or in the vehicle. The receiver (12) is operable in conjunction with a control unit (14) which contains a microprocessor (142) capable of performing control functions and decoding functions. The remote control access system (A) is unique in that it enables the user to electronically program into or delete from the receiver (12) a digital code or so-called encoding signal from any of a plurality of transmitters (10). Each transmitter (10) may contain not only different numbers of digital codes, but also a code generated by an entirely different method of encoding. Moreover, it is not necessary for the user or anyone else to know the specific encoded signal which is transmitted from any of the transmitters (10) to the receiver (12). The receiver (12) is operable with a plurality of transmitters (10), all of which operate on the same frequency. The present invention also provides an anti-sequencing capability such that one cannot use an electronic sequencer for detecting the code of the transmitter (10) for purposes of violating the security system (A).
Inventors
- 👤 Ze-Ev Drori
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 08:17
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00182; G07C9/00817; G07C9/20; G07C9/28; G07C2009/00753; G07C2009/00769; G07C2009/00793; G07C2009/00849; G07C2209/00; G07C2209/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
310 words
1 A user programmable remote control access system A in which an encoded signal from a transmitter 10 may be recorded as a signature control signal, said system comprising: (a) a portable hand-held transmitter 10 capable of generating and transmitting a radio frequency receiver responsive signal which is digitally encoded, (b) an encoder 16 associated with said transmitter 10 for digitally encoding the receiver responsive encoded signal, (c) a receiver 12 responsive to the transmitted encoded signal and generating an electrical signal representive of the encoded signal; The invention being characterized in that said receiver is operable in a program mode where it is capable of having an encoded signal from a transmitter to be recorded as a signature control signal and in an operating-receiving mode where it is capable of enabling and triggering in response to receipt of a valid and verified encoded signal corresponding to a recorded signature control signal, a microprocessor control unit operatively associated with the receiver, said control unit being operable to record a signature signal from a transmitter when the receiver is operable in the program mode only requiring the transmission of the encoded signal from the transmitter for recording as a signature control signal and thereby eliminating any need for access to the interior of the transmitter or receiver and thereby removes the need of the user or installer to have knowledge of the specific signature control signal and consequently no skills are required to program the receiver and control unit, said control unit being operable in the receive mode so that it will enable a decoding of an encoded signal from a transmitter and a comparison of the decoded signal to a signature control signal which has been recorded in the control unit to determine if the decoded signal corresponds to the recorded signature control signal and thereby represents a valid code.
Claim 2
Dependent Claim
310 words
1 A user programmable remote control access system A in which an encoded signal from a transmitter 10 may be recorded as a signature control signal, said system comprising: (a) a portable hand-held transmitter 10 capable of generating and transmitting a radio frequency receiver responsive signal which is digitally encoded, (b) an encoder 16 associated with said transmitter 10 for digitally encoding the receiver responsive encoded signal, (c) a receiver 12 responsive to the transmitted encoded signal and generating an electrical signal representive of the encoded signal; The invention being characterized in that said receiver is operable in a program mode where it is capable of having an encoded signal from a transmitter to be recorded as a signature control signal and in an operating-receiving mode where it is capable of enabling and triggering in response to receipt of a valid and verified encoded signal corresponding to a recorded signature control signal, a microprocessor control unit operatively associated with the receiver, said control unit being operable to record a signature signal from a transmitter when the receiver is operable in the program mode only requiring the transmission of the encoded signal from the transmitter for recording as a signature control signal and thereby eliminating any need for access to the interior of the transmitter or receiver and thereby removes the need of the user or installer to have knowledge of the specific signature control signal and consequently no skills are required to program the receiver and control unit, said control unit being operable in the receive mode so that it will enable a decoding of an encoded signal from a transmitter and a comparison of the decoded signal to a signature control signal which has been recorded in the control unit to determine if the decoded signal corresponds to the recorded signature control signal and thereby represents a valid code.
Claim 3
Dependent Claim
58 words
2 The remote control access system of Claim 1 further characterized in that said receiver and control unit are operable in the program mode to record many different transmitter encoded signals and encoded signals of different signal bases even when each produces completely different codes and each may have entirely different numbers of maximum combinations of available codes.
Claim 4
Dependent Claim
81 words
3 The remote control access system of Claim 1 further characterized in that said control unit is responsive to receiving signature control signals from a plurality of transmitters when the receiver is in the program mode to have the signature control signals from each of the plurality of transmitters recorded as signature control signals, so that in the receive mode, the subsequent encoded signals from any of said plurality of transmitters are decoded and compared against the recorded signature control signals.
Claim 5
Dependent Claim
41 words
4 The remote control access system of Claim 3 further characterized in that certain of said transmitters generate encoded signals which will access only certain areas and certain other of said transmitters generate encoded signals which enable access to other areas.
Claim 6
Dependent Claim
244 words
5 A user programmable remote control access system in which a receiver and a control unit therefore are operable upon receipt of a proper transmitted encoded signal from any of a plurality of transmitters and which transmitters may be of completely different types and which may generate different types of encoded signals to arm and disarm said system, the invention characterized in that the system comprises: a) at least one first transmitter 10A capable of transmitting a first receiver responsive radio frequency digitally encoded signal for arming and disarming said system, b) at least one second transmitter 10B capable of generating and transmitting a second and different radio frequency receiver responsive digitally encoded signal for arming and disarming said system, and which at least one second transmitter is of a different type and may generate competely different types of encoded signals and where the encoded signals may have different numbers of bits, c) a receiver 12 remote from the transmitters and responsive to the transmitted radio frequency encoded signals and generating electrical signals corresponding to each of the respectively encoded signals, and d) a control unit 14 operatively associated with the receiver, said control unit decoding the generated electrical signals to generate decoded digital signals and comparing the decoded digital signals to the signature control signals which have been previously recorded in the control unit to determine if the decoded digital signals correspond to the recorded signature control signals and thereby represent valid signals.
Claim 7
Dependent Claim
244 words
5 A user programmable remote control access system in which a receiver and a control unit therefore are operable upon receipt of a proper transmitted encoded signal from any of a plurality of transmitters and which transmitters may be of completely different types and which may generate different types of encoded signals to arm and disarm said system, the invention characterized in that the system comprises: a) at least one first transmitter 10A capable of transmitting a first receiver responsive radio frequency digitally encoded signal for arming and disarming said system, b) at least one second transmitter 10B capable of generating and transmitting a second and different radio frequency receiver responsive digitally encoded signal for arming and disarming said system, and which at least one second transmitter is of a different type and may generate competely different types of encoded signals and where the encoded signals may have different numbers of bits, c) a receiver 12 remote from the transmitters and responsive to the transmitted radio frequency encoded signals and generating electrical signals corresponding to each of the respectively encoded signals, and d) a control unit 14 operatively associated with the receiver, said control unit decoding the generated electrical signals to generate decoded digital signals and comparing the decoded digital signals to the signature control signals which have been previously recorded in the control unit to determine if the decoded digital signals correspond to the recorded signature control signals and thereby represent valid signals.
Claim 8
Dependent Claim
147 words
6 The remote control access system of Claim 7 further characterized in that the receiver and control unit are operable in a program mode to record the encoded transmitted signals as signature control signals and in a receive mode to compare subsequently received transmitted signals to the recorded signature control signals, said system being user programmable such that the user of any transmitter may initially record the encoded signal from that transmitter as a signature control signal in the control unit by simple actuation of the transmitter when the receiver and control unit are in a program mode, only requiring the transmission of the encoded signal from the transmitter for recording as a signature control signal and which eliminates the need of the user or installer to have knowledge of the specific signature control signal and thereby requires no skill to program the receiver and control unit.
Claim 9
Dependent Claim
238 words
7 A remote control access system A in which a receiver 12 is armed and disarmed by a radio frequency transmitted encoded signal from a remotely located transmitter 10, said system comprising (a) a transmitter capable of generating and transmitting a radio frequency receiver responsive encoded signal, (b) an encoder associated with said transmitter for encoding the receiver responsive encoded signal which is to be transmitted by the associated transmitter, (c) a receiver remote from the transmitter and responsive to the radio frequency transmitted encoded signal and generating an electrical signal representive of the encoded signal; the invention being characterized in that a microprocessor-based control unit is operatively associated with the receiver, said control unit comparing the decoded signal to a signature control signal which has been previously recorded in the control unit to determine if the decoded signal is a valid signal, or if the decoded signal does not correspond to the recorded signature control signal and is an invalid signal, said control unit preventing a comparison of the next successive decoded electrical signal with the signature control signal for a time delay which is longer than the time required for the generation of two successive encoded signals by electronic scanning techniques so that even if a valid signal corresponding to a recorded signature control signal is generated immediately following an invalid signal, it will be precluded from arming or disarming the system by electronic scanning techniques.
Claim 10
Dependent Claim
238 words
7 A remote control access system A in which a receiver 12 is armed and disarmed by a radio frequency transmitted encoded signal from a remotely located transmitter 10, said system comprising (a) a transmitter capable of generating and transmitting a radio frequency receiver responsive encoded signal, (b) an encoder associated with said transmitter for encoding the receiver responsive encoded signal which is to be transmitted by the associated transmitter, (c) a receiver remote from the transmitter and responsive to the radio frequency transmitted encoded signal and generating an electrical signal representive of the encoded signal; the invention being characterized in that a microprocessor-based control unit is operatively associated with the receiver, said control unit comparing the decoded signal to a signature control signal which has been previously recorded in the control unit to determine if the decoded signal is a valid signal, or if the decoded signal does not correspond to the recorded signature control signal and is an invalid signal, said control unit preventing a comparison of the next successive decoded electrical signal with the signature control signal for a time delay which is longer than the time required for the generation of two successive encoded signals by electronic scanning techniques so that even if a valid signal corresponding to a recorded signature control signal is generated immediately following an invalid signal, it will be precluded from arming or disarming the system by electronic scanning techniques.
Claim 11
Dependent Claim
227 words
8 A user remote control access system A in which a receiver is capable of generating a responsive action in the event of unauthorized intrusion in a selected environment, said system comprising: (a) a portable hand-held transmitter 10 capable of generating and transmitting a radio frequency receiver responsive signal which is digitally encoded, (b) an encoder 16 associated with said transmitter for encoding the receiver responsive encoded signal, and (c) a receiver 12 remote from the transmitter and responsive to the transmitted radio frequency encoded signal and generating an electrical signal representive of the encoded signal; the invention being characterized in that a microprocessor-based control unit is operatively associated with the receiver, said control unit decoding the generated electrical signals of at least two successive transmitted signals and generating decoded signals therefrom and comparing the decoded signals to each other and to a valid signature control signal previously recorded in the control unit to determine if the decoded signals represent valid signals, said control unit recognizing a valid signal if each of two successive encoded signals are indentical to each other and also are the same as the previously recorded signature control signal and recognizing said decoded signals as invalid if they do not compare to each other or if they do compare to each other but do not compare to the previously recorded signature control signal.
Claim 12
Dependent Claim
227 words
8 A user remote control access system A in which a receiver is capable of generating a responsive action in the event of unauthorized intrusion in a selected environment, said system comprising: (a) a portable hand-held transmitter 10 capable of generating and transmitting a radio frequency receiver responsive signal which is digitally encoded, (b) an encoder 16 associated with said transmitter for encoding the receiver responsive encoded signal, and (c) a receiver 12 remote from the transmitter and responsive to the transmitted radio frequency encoded signal and generating an electrical signal representive of the encoded signal; the invention being characterized in that a microprocessor-based control unit is operatively associated with the receiver, said control unit decoding the generated electrical signals of at least two successive transmitted signals and generating decoded signals therefrom and comparing the decoded signals to each other and to a valid signature control signal previously recorded in the control unit to determine if the decoded signals represent valid signals, said control unit recognizing a valid signal if each of two successive encoded signals are indentical to each other and also are the same as the previously recorded signature control signal and recognizing said decoded signals as invalid if they do not compare to each other or if they do compare to each other but do not compare to the previously recorded signature control signal.
Claim 13
Dependent Claim
76 words
9 The remote control access system of Claim 8 further characterized in that the receiver is user programmable with an encoded signal, said receiver being operable in a program mode where it is capable of having an encoded signal from a transmitter recorded as a signature control signal and in an operating-receive mode where it is capable of enabling triggering in response to receipt of a signature control signal corresponding to a recorded signature control signal.
Claim 14
Dependent Claim
226 words
10 A user programmable remote control access system in which a receiver and a control unit therefore are operable upon receipt of a proper transmitted encoded signal from any of a plurality of transmitters to arm and disarm the system, said system comprising (a) at least one first transmitter capable of generating and transmitting a radio frequency receiver responsive signal which is digitally encoded, (b) at least one second transmitter capable of generating and transmitting a second and different radio frequency receiver responsive digitally encoded signal for arming and disarming said system, and which at least one second transmitter is of a different type and may generate different types of encoded signals than any such first transmitter, and (c) a receiver remote from the transmitters and responsive to the transmitted encoded signal and generating electrical signals respectively representive of the encoded signals; the invention chracterized in that a control unit is operatively associated with the receiver, said control unit decoding the generated electrical signals to generate decoded digital signals, said control unit enabling access to a first area if the encoded signal from the first transmitter corresponds to a first recorded signature control signal, said control unit enabling access to a second area if the encoded signal from a second transmitter corresponds to a second recorded signature control signal and is also thereby a valid signal.
Claim 15
Dependent Claim
226 words
10 A user programmable remote control access system in which a receiver and a control unit therefore are operable upon receipt of a proper transmitted encoded signal from any of a plurality of transmitters to arm and disarm the system, said system comprising (a) at least one first transmitter capable of generating and transmitting a radio frequency receiver responsive signal which is digitally encoded, (b) at least one second transmitter capable of generating and transmitting a second and different radio frequency receiver responsive digitally encoded signal for arming and disarming said system, and which at least one second transmitter is of a different type and may generate different types of encoded signals than any such first transmitter, and (c) a receiver remote from the transmitters and responsive to the transmitted encoded signal and generating electrical signals respectively representive of the encoded signals; the invention chracterized in that a control unit is operatively associated with the receiver, said control unit decoding the generated electrical signals to generate decoded digital signals, said control unit enabling access to a first area if the encoded signal from the first transmitter corresponds to a first recorded signature control signal, said control unit enabling access to a second area if the encoded signal from a second transmitter corresponds to a second recorded signature control signal and is also thereby a valid signal.
References Cited (Backward Citations)
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