Data communication apparatus with intermittent activation control circuit
First Claim
Patent Images
1. A data communication device comprising:
- a receiving circuit configured to receive a data signal in an active state;
an intermittent activation control circuit configured to activate said receiving circuit into the active state in a predetermined time interval; and
a control unit configured to operate in response to said data signal received by said receiving circuit,wherein said control unit controls said time interval of said intermittent activation control circuit based on a command of said data signal received by said receiving circuit, andwherein said command is determined based on a time length of a next one of said data signal.
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Abstract
A data communication device includes a receiving circuit configured to receive a data signal in an active state. An intermittent activation control circuit activates the receiving circuit into the active state in a predetermined time interval. A control unit operates in response to the data signal received by the receiving circuit. Also, the control unit controls the time interval of the intermittent activation control circuit.
9 Citations
17 Claims
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1. A data communication device comprising:
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a receiving circuit configured to receive a data signal in an active state; an intermittent activation control circuit configured to activate said receiving circuit into the active state in a predetermined time interval; and a control unit configured to operate in response to said data signal received by said receiving circuit, wherein said control unit controls said time interval of said intermittent activation control circuit based on a command of said data signal received by said receiving circuit, and wherein said command is determined based on a time length of a next one of said data signal.
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2. A data communication device comprising:
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a receiving circuit configured to receive a data signal in an active state; an intermittent activation control circuit configured to activate said receiving circuit into the active state in a predetermined time interval; and a control unit configured to operate in response to said data signal received by said receiving circuit, wherein said receiving circuit is set to the active state in response to an activation signal, and said intermittent activation control circuit comprises; an oscillator configured to generate an oscillation signal; a frequency divider configured to frequency-divide the oscillation signal; and a timer configured to output the oscillation signal after the frequency-division as the activation signal to said receiving circuit in said time interval based on a time interval data. - View Dependent Claims (3)
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4. A communication control module provided for a target, comprising:
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first and second antennas; a receiving circuit configured to receive a command data signal through said first antenna in an active state; an intermittent activation control circuit configured to activate said receiving circuit into the active state in a predetermined time interval; a sensor section including at least a sensor for said target; a transmission interface configured to transmit a measurement data signal through said second antenna; and a control unit configured to control said sensor section and said transmission interface such that said measurement data signal from said sensor section is transmitted, when said command data signal received by said receiving circuit includes a measurement command. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A TPMS (tire pneumatic pressure monitoring system) comprising:
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a plurality of sensor communication modules provided for tires, each of plurality of sensor communication modules having first and second antennas; a plurality of sensor initiators provided or said tires, each of said plurality of sensor initiators having third and fourth antennas; and a communication control module provided for a car body, and connected with said third and fourth antennas through a LAN, wherein said communication control module transmits an electromagnetic wave of a command data signal through said third antenna to each of said plurality of sensor communication modules, and each of said plurality of sensor communication modules intermittently receives said command data signal through said first antenna, and transmits a measurement data signal of at least one of a tire pneumatic pressure and a tire temperature to said communication control module from said second antenna through said fourth antenna when said command data signal includes a measurement command. - View Dependent Claims (11, 12, 13)
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14. An operation method in a TPMS (tire pneumatic pressure monitoring system), comprising:
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transmitting a communication control module an electromagnetic wave of a command data signal through a first antenna to each of a plurality of sensor communication modules provided for tires; intermittently receiving said command data signal through a second antenna provided for each of said plurality of sensor communication modules; and transmitting a measurement data signal of at least one of a tire pneumatic pressure and a tire temperature to said communication control module from a third antenna though a fourth antenna when said command data signal includes a measurement command. - View Dependent Claims (15, 16, 17)
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Specification