Hand-held electronic device
First Claim
1. A hand-held electronic device comprising:
- a contactless communication unit for performing contactless data communication with an external transmitter-receiver, wherein said contactless data communication unit (i) comprises a memory and a voltage power generating circuit for generating voltage power from a signal received from said external transmitter-receiver to supply the generated voltage power to a circuit in said contactless communication unit including said memory, (ii) receives data through contactless communication utilizing voltage power generated by said voltage power generating circuit, and (iii) writes in said memory data acquired by the contactless data communication or updates data in said memory with data acquired by the contactless data communication;
a power source;
a switch provided between said power source and said contactless communication unit;
a display unit;
an information processing unit which operates on power provided from said power source, for receiving data from said memory of said contactless communication unit to display the data on said display unit or process the data and then display the processed data on said display unit;
a carrier detecting unit for detecting a carrier transmitted from said external transmitter-receiver; and
a power supply controlling unit for bringing said switch into an on state, in response to a signal from said carrier detecting unit indicating that a carrier is no longer being input to said hand-held electronic device, so as to trigger a power supply from said power source to said contactless communication unit.
2 Assignments
0 Petitions
Accused Products
Abstract
A hand-held electronic device comprises an IC-card chip unit, a watch CPU, a power source unit, a display unit, and a switch connected between the power source unit and the IC-card chip unit. The watch CPU has a power supply controlling unit. The IC-card chip unit performs contactless data communication with an external transmitter-receiver in close range. The watch CPU operates on power from the power source unit, receives data from the IC-card chip unit to display the data on the display unit or to process the data before displaying them on the display unit. The power supply controlling unit closes a switch at least during the period of time that the watch CPU receives data from the IC-card chip unit, thereby causing power to be supplied from the power source unit to the IC-card chip unit.
47 Citations
97 Claims
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1. A hand-held electronic device comprising:
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a contactless communication unit for performing contactless data communication with an external transmitter-receiver, wherein said contactless data communication unit (i) comprises a memory and a voltage power generating circuit for generating voltage power from a signal received from said external transmitter-receiver to supply the generated voltage power to a circuit in said contactless communication unit including said memory, (ii) receives data through contactless communication utilizing voltage power generated by said voltage power generating circuit, and (iii) writes in said memory data acquired by the contactless data communication or updates data in said memory with data acquired by the contactless data communication; a power source; a switch provided between said power source and said contactless communication unit; a display unit; an information processing unit which operates on power provided from said power source, for receiving data from said memory of said contactless communication unit to display the data on said display unit or process the data and then display the processed data on said display unit; a carrier detecting unit for detecting a carrier transmitted from said external transmitter-receiver; and a power supply controlling unit for bringing said switch into an on state, in response to a signal from said carrier detecting unit indicating that a carrier is no longer being input to said hand-held electronic device, so as to trigger a power supply from said power source to said contactless communication unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 29, 30, 31, 32, 33, 34, 35, 36, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 88, 89)
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27. A hand-held electronic device as claimed in 26,
wherein said display prohibiting unit detects that a radio communication start signal is received from said external transmitter-receiver by said contactless communication unit, thereby detecting start of said contactless data communication.
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37. A hand-held electronic device, comprising:
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a contactless communication unit for performing contactless data communication with an external transmitter-receiver; a display unit for displaying information by digital control; an information processing unit which receives data obtained through said contactless data communication from said contactless communication unit to display the data or results obtained after processing the data on said display unit; and a display prohibiting unit for suspending the display operation of said display unit on receipt of a polling signal transmitted from said external transmitter-receiver. - View Dependent Claims (91, 92, 93, 94, 95, 96, 97)
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38. A method for controlling a hand-held electronic device comprising a contactless communication unit for performing contactless data communication with an external transmitter-receiver, a power source, a switch provided between said power source and said contactless communication unit, a display unit, an information processing unit which operates on power from said power source, a carrier detecting unit for detecting a carrier transmitted from said external transmitter-receiver, a power supply controlling unit for controlling power supply from said power source to said contactless communication unit, a memory, and a voltage power generating circuit for generating voltage power from a signal received from said external transmitter-receiver, the method comprising the steps of:
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causing said contactless communication unit to write, in said memory, data acquired by the contactless data communication or update data in said memory with data acquired by the contactless data communication, wherein said contactless communication unit including said memory obtains power from said voltage power generating circuit at least when receiving data from said external transmitter-receiver; causing said information processing unit to receive data from said memory of said contactless communication unit, display the data on said display unit or process the data and then display the processed data on said display unit; causing said carrier detecting unit to detect a carrier transmitted from said external transmitter-receiver; and causing said power supply controlling unit to bring said switch into an on state, in response to a signal from said carrier detecting unit indicating that a carrier is no longer being input to said hand-held electronic device, so as to trigger a power supply from said power source to said contactless communication unit.
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39. A method for controlling a hand-held electronic device comprising a contactless communication unit for performing contactless data communication with an external transmitter-receiver and a display unit, including the step of:
suspending a display operation of said display unit on receipt of a polling signal transmitted from said external transmitter-receiver.
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40. A computer program product for controlling a hand-held electronic device comprising a contactless communication unit for performing contactless data communication with an external transmitter-receiver, a power source, a switch provided between said power source and said contactless communication unit, a display unit, an information processing unit which operates on power from said power source, a carrier detecting unit for detecting a carrier transmitted from said external transmitter-receiver, a power supply controlling unit for controlling power supply from said power source to said contactless communication unit, a memory, and a voltage power generating circuit for generating voltage power from a signal received from said external transmitter-receiver, the computer program product comprising:
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computer readable program means for causing said contactless communication unit to write, in said memory, data acquired by contactless data communication or update data in said memory with data acquired by the contactless data communication, wherein said contactless communication unit including said memory obtains power from said voltage power generating circuit at least when receiving data from said external transmitter-receiver; and computer readable program means for causing said information processing unit to receive data from said memory of said contactless communication unit, display the data on said display unit or process the data and then display the processed data on said display unit; computer readable program means for causing said carrier detecting unit to detect a carrier transmitted from said external transmitter-receiver; and computer readable program means for causing said power supply controlling unit to bring said switch into an on state, in response to a signal from said carrier detecting unit indicating that a carrier is no longer being input to said hand-held electronic device, so as to trigger a power supply from said power source to said contactless communication unit.
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41. A computer control program product,
wherein the control program is executed by a hand-held electronic device having a contactless communication unit for performing contactless data communication with an external transmitter-receiver and a display unit, comprising computer readable program means for causing a computer to suspend a display operation of said display unit on receipt of a polling signal transmitted from said external transmitter-receiver.
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42. A recording medium in which control program means for controlling a hand-held electronic device is stored, the hand-held electronic device comprising a contactless communication unit for performing contactless data communication with an external transmitter-receiver, a power source, a switch provided between said power source and said contactless communication unit, a display unit, an information processing unit which operates on power from said power source, a carrier detecting unit for detecting a carrier transmitted from said external transmitter-receiver, a power supply controlling unit for controlling power supply from said power source to said contactless communication unit, a memory, and a voltage power generating circuit for generating voltage power from a signal received from said external transmitter-receiver, the control program means performing the steps of:
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causing said contactless communication unit to write, in said memory, data acquired by contactless data communication or update data in said memory with data acquired by the contactless data communication, wherein said contactless communication unit including said memory obtains power from said voltage power generating circuit at least when receiving data from said external transmitter-receiver; causing said information processing unit to receive data from said memory of said contactless communication unit, display data on said display unit or process the data and then display the processed data on said display unit; causing said carrier detecting unit to detect a carrier transmitted from said external transmitter-receiver; and causing said power supply controlling unit to bring said switch into an on state, in response to a signal from said carrier detecting unit indicating that a carrier is no longer being input to said hand-held electronic device, so as to trigger a power supply from said power source to said contactless communication unit.
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43. A computer readable recording medium in which control program means for controlling a hand-held electronic device is stored, the hand-held electronic device having a contactless communication unit for performing contactless data communication with an external transmitter-receiver, and a display unit,
wherein said control program means suspends a display operation of said display unit on receipt of a polling signal transmitted from said external transmitter-receiver.
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87. A hand-held electronic device as claimed in 86,
wherein said display prohibiting unit detects that radio communication start signal is received from said external transmitter-receiver by said contactless communication unit, thereby detecting the start of said contactless data communication.
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90. A hand-held electronic device as claimed in 37,
wherein said display prohibiting unit detects that a radio communication start signal is received from said external transmitter-receiver by said contactless communication unit, thereby detecting start of said contactless data communication.
Specification