Human interface device and wireless communication method thereof
First Claim
1. A wireless input unit for communicating data with a host digital terminal, the wireless input unit comprising at least one emergency channel, one occupancy channel, and at least one unoccupied channel, transmission and reception channels of each channel using the same frequency band, wherein when there is no interference on the occupancy channel, the wireless input unit communicates data with the host digital terminal through the occupancy channel, and when there is interference on the occupancy channel, the wireless input unit communicates data with the host digital terminal through the emergency channel so as to newly set up the occupancy channel.
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Accused Products
Abstract
Provided are a human interface device and a wireless communication method thereof. The wireless communication method of the human interface includes the steps of: setting up an occupancy channel of the host digital terminal and the wireless input unit by communicating data for setting up the occupancy channel through the emergency channel; transmitting, at the wireless input unit, operation data through the occupancy channel, and receiving, at the host digital terminal, the operation data; and when the operation data is not generated until a predetermined time lapses, enabling the wireless input unit and the host digital terminal to operate in an operation standby state, and confirming whether there is interference on the occupancy channel. Accordingly, efficiency of a frequency band is increased, and cost and size of the product can be reduced. Further, when interference on the occupancy channel is detected, a new occupancy channel can be set up so that reliability and efficiency of the wireless communication can be increased.
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Citations
42 Claims
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1. A wireless input unit for communicating data with a host digital terminal, the wireless input unit comprising at least one emergency channel, one occupancy channel, and at least one unoccupied channel, transmission and reception channels of each channel using the same frequency band,
wherein when there is no interference on the occupancy channel, the wireless input unit communicates data with the host digital terminal through the occupancy channel, and when there is interference on the occupancy channel, the wireless input unit communicates data with the host digital terminal through the emergency channel so as to newly set up the occupancy channel.
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10. A host digital terminal wirelessly connected to a wireless input unit and connected via cable to a computer, for interfacing between the wireless input unit and the computer, the host digital terminal comprising at least one emergency channel, one occupancy channel, and at least one unoccupied channel, transmission and reception channels of each channel using the same frequency,
wherein when there is no interference on the occupancy channel, the host digital terminal communicates data through the occupancy channel, and when there is interference on the occupancy channel, the host digital terminal obtains a substitute channel from among the at least one unoccupied channel, generates data including substitute channel information to set up a new occupancy channel, and communicates the data through the emergency channel.
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19. A wireless communication method in a wireless input unit including at least one emergency channel, one occupancy channel, and at least one unoccupied channel, transmission and reception channels of each channel using the same frequency, the method comprising the steps of:
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a) when receiving data to set up the occupancy channel through the emergency channel, analyzing the data to set up the occupancy channel, obtaining a substitute channel, and setting up the substitute channel as a new occupancy channel;
b) transmitting operation data generated by an internal operation of the wireless input unit through the occupancy channel;
c) when the operation data is not generated before a predetermined time lapses, confirming whether there is interference on the occupancy channel and then enabling the wireless input unit to operate in a standby state when there is no interference on the occupancy channel, and enabling the wireless input unit to enter into the channel setup step when there is interference on the occupancy channel; and
d) when the operation data is generated in the standby state, confirming whether there is interference on the occupancy channel, enabling the wireless input unit to enter into step b) when there is no interference on the occupancy channel, and enabling the wireless input unit to enter into step a) when there is interference on the occupancy channel. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 42)
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27. A wireless communication method in a host digital terminal including at least one emergency channel, one occupancy channel, and at least one unoccupied channel, transmission and reception channels of each channel using the same frequency, the method comprising the steps of:
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a) scanning the one occupancy channel and the at least one unoccupied channel and obtaining a substitute channel, setting up the substitute channel as a new occupancy channel, generating data including information on the substitute channel to set up the occupancy channel, and transmitting the data on the emergency channel;
b) when receiving operation data of the wireless input unit through the set occupancy channel, converting the operation data into a format recognized by a computer, and transmitting the converted data to the computer;
c) when informed that the wireless input unit enters into an operation standby state through the set occupancy channel, enabling the wireless input unit to enter into the operation standby state and intermittently confirming whether there is interference on the occupancy channel, maintaining the operation standby state when there is no interference on the occupancy channel, and enabling the wireless input unit to enter into the step a) when there is interference on the occupancy channel; and
d) when informed that the wireless input unit exits the operation standby state through the set occupancy channel in the operation standby state, confirming whether there is interference on the occupancy channel, enabling the wireless input unit to enter into the step b) when there is no interference on the occupancy channel, and enabling the wireless input unit to enter into the step a) when there is interference on the occupancy channel. - View Dependent Claims (28, 29, 30, 31)
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32. A wireless communication method in a human interface apparatus having a host digital terminal and a wireless input unit including at least one emergency channel, one occupancy channel, and at least one unoccupied channel, transmission and reception channels of each channel using the same frequency, the method comprising the steps of:
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a) setting up an occupancy channel of the host digital terminal and the wireless input unit by communicating data for setting up the occupancy channel through the emergency channel;
b) transmitting, at the wireless input unit, operation data through the occupancy channel, and receiving, at the host digital terminal, the operation data; and
c) when the operation data is not generated until a predetermined time lapses, enabling the wireless input unit and the host digital terminal to operate in an operation standby state, and confirming whether there is interference on the occupancy channel. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification