Remote control security system for determining that identification data has been repetitively received continuously during a period of time

• US 6,091,341 A
• Filed: 04/07/1997
• Issued: 07/18/2000
• Est. Priority Date: 08/09/1989
• Status: Expired due to Fees

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Nose, Shinji, Enoki, Masahiko
• Primary Examiner(s): Holloway, III, Edwin C.
• Application Number:
  US08/834,599
• Time in Patent Office: 1,198 Days
• Field of Search: 340/825.32, 340/825.31, 340/825.69, 340/825.72, 340/426, 340/825.54, 340/875.21, 340/875.48, 340/539, 307/10.2, 361/172, 123/179.02
• US Class Current: 340/5.28
• CPC Class Codes: G07C 2009/00261 the keyless data carrier having more than one function
• CPC Class Codes: G07C 2009/00293 anti-theft
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 2009/00849 programming by learning
• CPC Class Codes: G07C 2209/06 Involving synchronization or resynchronization between transmitter and receiver; reordering of codes
• CPC Class Codes: G07C 9/00182 operated with unidirectional data transmission between data carrier and locks

Abstract

The remote control security system includes a receiver which receives communication data, including identification data, from a transmitter. The system also includes a device for locking and unlocking doors when the received identification data match prestored identification data. The system also includes a device for determining whether the communication data is continuously received for more than a preset period of time and for generating an alarm when the continuous receiving condition is determined by a determining device.

Claims

1. A remote control security system for use with an automotive vehicle, said remote control security system comprising:

a transmitting apparatus for transmitting communication data including identification data;

an alarming apparatus to be provided in the vehicle; and

a receiving apparatus for receiving the communication data, said receiving apparatus including;

a memory for prestoring predetermined identification data corresponding to the identification data included in the communication data,

first determining means for comparing the identification data included in the communication data received by said receiving means with the identification data prestored in said memory upon reception of the communication data and for determining whether the identification data included in the communication data received by said receiving means match the identification data prestored in said memory,

alarm controlling means for actuating said alarming apparatus for a predetermined alarming duration,

theft preventing means which can be set or reset, and which, when set, is operable for detecting theft and actuating said alarm controlling means, so as to drive said alarming apparatus for the predetermined alarming duration, upon detecting theft,

first controlling means for controlling setting or resetting of said theft-preventing means when said first determining means determines that the identification data included in the communication data received by said receiving means match the identification prestored in said memory,

second determining means for determining whether the identification data of the communication data has been repetitively and continuously determined to match the identification data prestored in said memory by said first determining means, beginning with and immediately after a first match determined by said first determining means, during a period of time which is longer than a predetermined period of time, and

panic alarm means for actuating said alarm controlling means, so as to drive said alarming apparatus for the predetermined alarming duration, only after said second determining means determines that the identification data of the communication data has been repetitively and continuously determined to match the identification data prestored in said memory by said first determining means, beginning with and immediately after the match determined by said first determining means, for more than said predetermined period of time.

2. The remote control security system as claimed in claim 1, wherein said first controlling means further controls a locking or unlocking state of doors of the vehicle according to whether said theft preventing means is set or reset.

3. The remote control security system as claimed in claim 1, wherein the communication data includes a plurality of data, said memory prestores a plurality of predetermined data corresponding to the plurality of data included in the communication data, said second determining means is further operable for setting a respective determination basis for each of the plurality of data, each determination basis defining a degree of coincidence between received data included in the communication data and corresponding prestored data in said memory, for repeatedly comparing the received data with the prestored data, respectively, and for determining that the identification data has been repetitively received by said receiving apparatus continuously during a period of time which is longer than the predetermined period of time when the determination basis of each data is satisfied for all the plurality of data during the predetermined period of time.

4. The remote control security system as claimed in claim 3, wherein the plurality of data (D) comprises data D₁, data D₂, and data D₃ ;

and said second determining means is further operable for comparing received data D₁ with prestored data corresponding to data D₁, for adding one to a preset count value Na₁ of the data D₁ to obtain a renewed count value Na₁ when the comparison reveals a coincidence, for subsequently comparing received data D₂ with prestored data corresponding to data D₂, for adding one to a preset count value Nb₁ of the data D₂ to obtain a renewed count value Nb₁ when the comparison reveals a coincidence, for further subsequently comparing received data D₃ with prestored data corresponding to data D₃, for adding one to a preset count value Nc₁ of the data D₃ to obtain a renewed count value Nc₁ when the comparison reveals a coincidence, for continuously repeating the afore-indicated steps within the predetermined period of time, and for determining that the identification data has been repetitively received by said receiving apparatus continuously during a period of time which is longer than the predetermined period of time when the renewed count values Na₁, Nb₁, and Nc₁ are all greater than the preset count values Na₁, Nb₁, and Nc₁, respectively.

5. A remote control security system for use with an automotive vehicle, said remote control security system comprising:

a transmitting apparatus for transmitting communication data including identification data;

an alarming apparatus provided in the vehicle; and

a receiving apparatus for receiving the communication data,

said receiving apparatus including;

a memory for prestoring predetermined identification data corresponding to the identification data included in the communication data,

first determining means for comparing the identification data included in the communication data received by said receiving means with the identification data prestored in said memory upon reception of the communication data and for determining whether the identification data included in the communication data received by said receiving means match the identification data prestored in said memory,

first controlling means for controlling a locking or unlocking state of doors of the vehicle when said first determining means determines that the identification data included in the communication data received by said receiving means match the identification data prestored in said memory,

second determining means for determining whether the identification data of the communication data has been repetitively and continuously determined to match the identification data prestored in said memory by said first determining means, beginning with and immediately after a first match determined by said first determining means, during a period of time which is longer than a predetermined period of time, and

panic alarm means for actuating said alarming apparatus only after said second determining means determines that the identification data of the communication data has been repetitively and continuously determined to match the identification data prestored in said memory by said first determining means, beginning with and immediately after the match determined by said first determining means, for more than said predetermined period of time,

wherein, when said receiving apparatus receives the identification data of the communication data repetitively and continuously for more than the predetermined period of time, said first controlling means is operable to control a locking or unlocking state of the vehicle doors upon a first matching of the received identification data with the prestored identification data, and subsequent to the first matching and the controlling of the locking or unlocking state by said first controlling means, said panic alarm means is then operable to actuate said alarming apparatus upon said continuous matching of the identification data after the first matching.

6. The remote control security system as claimed in claim 5, further comprising a theft preventing means which can be set or reset, and which, when set, is operable for detecting theft and actuating the alarming apparatus, wherein said first controlling means is further operable for controlling setting or resetting of said theft prevention means according to the locking or unlocking state of the doors.

7. The remote control security system as claimed in claim 5, wherein the communication data includes a plurality of data, said memory prestores a plurality of predetermined data corresponding to the plurality of data included in the communication data, said second determining means is further operable for setting a respective determination basis for each of the plurality of data, each determination basis defining a degree of coincidence between received data included in the communication data and corresponding prestored data in said memory, for repeatedly comparing the received data with the prestored data, respectively, and for determining that the identification data has been repetitively received by said receiving apparatus continuously during a period of time which is longer than the predetermined period of time when the determination basis of each data is satisfied for all the plurality of data during the predetermined period of time.

8. The remote control security system as claimed in claim 7, wherein the plurality of data (D) comprises data D₁, data D₂, and data D₃ ;

and said second determining means is further operable for comparing received data D₁ with prestored data corresponding to data D₁, for adding one to a preset count value Na₁ of the data D₁ to obtain a renewed count value Na₁ when the comparison reveals a coincidence, for subsequently comparing received data D₂ with prestored data corresponding to data D₂, for adding one to a preset count value Nb₁ of the data D₂ to obtain a renewed count value Nb₁ when the comparison reveals a coincidence, for further subsequently comparing received data D₃ with prestored data corresponding to data D₃, for adding one to a preset count value Nc₁ of the data D₃ to obtain a renewed count value Nc₁ when the comparison reveals a coincidence, for continuously repeating the afore-indicated steps within the predetermined period of time, and for determining that the identification data has been repetitively received by said receiving apparatus continuously during a period of time which is longer than the predetermined period of time when the renewed count values Na₁, Nb₁, and Nc₁ are all greater than the preset count values Na₁, Nb₁, and Nc₁, respectively.

9. A remote control security system for use with a lock and a vehicle alarm, said remote control security system comprising:

a transmitter having a button and a first memory operable for storing identification bit data, said transmitter operable for transmitting the identification bit data when said button is actuated and then repeatedly continuously transmitting the identification bit data until said button is deactuated; and

a receiver for receiving the identification bit data transmitted by said transmitter;

said receiver including;

a second memory operable for storing identification data corresponding to the identification bit data stored in said first memory, and

a microprocessor for comparing the identification bit data received by said receiver with the identification data stored in said second memory upon reception of the identification bit data, for determining whether the identification bit data received by said receiver matches the identification data stored in said second memory, and for causing the lock to be locked or unlocked as soon as there is an initial match between the received data and the stored data,

wherein said microprocessor is further operable for recognizing that an entirety of the identification bit data has been repetitively continuously determined by said microprocessor to match the stored data a predetermined number of times, beginning with and immediately after the initial match, and for actuating the vehicle alarm as a panic alarm, only after the lock has been locked or unlocked in response to the initial match and upon a recognition by said microprocessor that the entirety of the identification bit data has been repetitively continuously determined by said microprocessor to match the stored data the predetermined number of times beginning with and immediately after the initial match.

10. A remote control security system for use with a lock and a vehicle alarm, said remote control security system comprising:

a transmitter having a button and a first memory operable for storing identification bit data, said transmitter operable for transmitting the identification bit data when said button is actuated and then repeatedly continuously transmitting the identification bit data until said button is deactuated; and

a receiver for receiving the identification bit data transmitted by said transmitter;

said receiver including;

a second memory operable for storing identification data corresponding to the identification bit data stored in said first memory, and

a microprocessor for comparing the identification bit data received by said receiver with the identification data stored in said second memory upon reception of the identification bit data, for determining whether the identification bit data received by said receiver matches the identification data stored in said second memory during an initial occurrence of a first period of time, and for causing the lock to be locked or unlocked upon a match between the identification bit data received by said receiver and the identification data stored in said second memory during the first occurrence of the first period of time,

wherein said microprocessor is further operable for recognizing that during plural occurrences of the first period of time the match has been repetitively continuously made by said microprocessor, beginning with and immediately after the first occurrence of the first period of time, and for actuating the vehicle alarm as a panic alarm, only after the lock is locked or unlocked during the initial occurrence of the first period of time and upon a recognition by said microprocessor that the match has been repetitively continuously made during the plural occurrences of the first period of time beginning with and immediately after the first occurrence of the first period of time.

11. A remote control security system for use with a lock and a vehicle alarm, said remote control security system comprising:

a transmitter having a button and a first memory operable for storing identification bit data, said transmitter operable for transmitting the identification bit data when said button is actuated and then repeatedly continuously transmitting the identification bit data until said button is deactuated; and

a receiver for receiving the identification bit data transmitted by said transmitter;

said receiver including;

a second memory operable for storing identification data corresponding to the identification bit data stored in said first memory, and

a microprocessor for comparing the identification bit data received by said receiver with the identification data stored in said second memory upon reception of the identification bit data, for determining whether the identification bit data received by said receiver matches the identification data stored in said second memory, and for causing the lock to be locked or unlocked as soon as there is an initial match between the identification bit data received by said receiver and the identification data stored in said second memory,

wherein said microprocessor is further operable for recognizing that the match has been repetitively continuously recognized in excess of a plurality of occurrences beginning with and immediately after the initial match, and for actuating the vehicle alarm as a panic alarm, only after the lock has been locked or unlocked in response to the initial match and upon the recognition that the match has been repetitively continuously recognized in excess of the plurality of occurrences beginning with and immediately after the initial match.

12. A remote control security system for use with a lock and an alarm, said remote control security system comprising:

a transmitter having a button and a first memory operable for storing identification bit data, said transmitter operable for transmitting the identification bit data when said button is actuated and then repeatedly continuously transmitting the identification bit data until said button is deactuated; and

a receiver for receiving the identification bit data transmitted by said transmitter;

said receiver including;

a second memory operable for storing identification data corresponding to the identification bit data stored in said first memory, and

a processor for comparing the identification bit data received by said receiver with the identification data stored in said second memory upon reception of the identification bit data, for causing the lock to be locked or unlocked upon a first match between the identification bit data received by said receiver and the identification data stored in said second memory, and for actuating the alarm as a panic alarm only after said processor recognizes that there is a continuous matching between the received identification data and the stored identification data for a predetermined period of time following both the first match and the locking or unlocking of the lock.

13. The system of claim 12, wherein said processor is operable for actuating the alarm as a panic alarm a predetermined amount of time after the first match.

14. The system of claim 12, wherein said processor is operable for actuating the alarm as a panic alarm at a time at which a predetermined number of continuous matches have occurred.

15. A remote control security system for use with a transmitter having a button for transmitting identification bit data, a lock, and a panic alarm, said remote control security system comprising:

a receiver operable to receive identification bit data transmitted by the transmitter having the button for transmitting the identification bit data; and

a controller operable to control the lock and the panic alarm, and operable to cause the lock to be locked or unlocked upon a first match, within a single actuation of the button of the transmitter, between the received identification bit data and an identification data stored within the system and corresponding to the identification bit data, and to actuate the panic alarm at a time, within the single actuation of the button of the transmitter, where there has been a second continuous match between the received identification bit data and the identification data stored within the system, only after the lock has been locked or unlocked upon the first match.