RECEIVING APPARATUS

• US 20020125989A1
• Filed: 11/29/1999
• Published: 09/12/2002
• Est. Priority Date: 08/09/1989
• Status: Active Grant

• Current Assignee: Masahiko Enoki, Shinji Nose
• Original Assignee: Masahiko Enoki, Shinji Nose
• Inventors: NOSE, SHINJI, ENOKI, MASAHIKO
• Granted Patent: US 6,624,740 B2
• Time in Patent Office: Days
• US Class Current: 340/5.2
• 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

An apparatus remotely controls, for example, door locking/unlocking and alarm activation of an automobile. A transmitting device transmits communication data, which includes synchronization data and identification data. The communication data is received by the control apparatus in which the identification data included in the received communication data is compared with already stored data. The locking and unlocking of the doors of the vehicle is carried out when the identification data matches the already stored data. A continuous reception condition is detected when the communication data is received for more than a predetermined period of time. When the continuous reception condition is detected, an alarm is actuated. As such, a common transmitting button of the transmitting device can be used to effect both control of the locking and unlocking of doors and alarm activation. The control apparatus may also include an erasable memory which is remotely settable in a writable status and in which identification data can be erased by remote control while in the writable status.

Claims

1. A receiving apparatus receiving a communication data including an identification data from a transmitting apparatus, comprising

means for locking/unlocking doors,

means for controlling locking/unlocking means when the communication data matching the identification data is received,

means for determining whether or not the communication data being received continuously for more than a preset period of time, and

means for generating an alarm when continuous receiving being determined by the determining means.

2. A receiving apparatus receiving a communication data including an identification data from a transmitting apparatus characterized by determining the continuous receiving by repeatedly performing a comparison of at least a part of the communication data and previously stored data.

3. The receiving apparatus as claimed in claim 2, wherein the receiving apparatus is provided with means for determining the continuous receiving when all results of the comparisons within a preset period of time are matched.

4. The receiving apparatus as claimed in claim 2, wherein the receiving apparatus is provided with means for determining the continuous receiving when, as results of the comparisons within a preset period of time, there is agreement for more than a preset number of times within a number of comparisons in that period of time.

5. The receiving apparatus as claimed in claim 2, wherein the receiving apparatus is provided with means for determining the continuous receiving and establishing a judgment standard for each classification of the communication data, and the determining means determines continuous receiving when all of the judgment standards for each classification are satisfied within a preset period of time as a result of the comparisons within the preset period of time.

6. A receiving apparatus receiving a communication data including an identification data from a transmitting apparatus, comprising

means for storing which makes possible the writing, clearing and reading out of the identification data,

means for status setting to set the storing means to writable status, clearable status or readable status, and

means for controlling in response to an output from the status setting means, in which

when the storing means is set to the writable status, receives the communication data from the transmitting apparatus, and writes the identification data contained in the received communication data to the storing means,

when set to the clearable status, clears the identification data stored in the storing means, and

when set to the readable status, reads out the identification data from the storing means, and when the identification data that read out matches the identification data contained in the received communication data, outputs an output signal which responds to the received communication data.

7. The receiving apparatus as claimed in claim 6, wherein the receiving apparatus is provided with means for reporting which reports over the period of the status that the storing means is in the writable status.

8. The receiving apparatus as claimed in claim 6, wherein

the status setting means includes means for switching the writable status and the readable status, and means for clocking the period after the switching means has operated,

the status setting means sets into the status that the switching means is operated when a preset period of time is passed after the switching means is operated and sets into the clearable status when, after the switching means is operated, the switching means is operated again before the time period is passed.

9. The receiving apparatus as claimed in claim 6, wherein the storing means is divided into a number of storing areas, and that in case the inputted identification data exceeds the number of divisions, the identification data is cleared in the order of earliest input to the storing means.