Human interface device and wireless communication method thereof
First Claim
1. A wireless input unit of human interface device 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 as employing a time divisional two-way communication scheme;
- wherein the wireless input unit comprises an operation active mode for transmitting operation data generated by an internal operation of the wireless input unit through the occupancy channel, a standby mode for maintaining a lower power state than the operation active mode and sensing an interference on the occupancy channel, and a channel setup mode for communicating data used to set up the occupancy channel through the emergency channel and setting up the new occupancy channel;
wherein when there is no interference on the occupancy channel, the wireless input unit communicates the operation 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 that includes substitute channel information to set up a new occupancy channel as the occupancy channel with the host digital terminal through the emergency channel; and
wherein when the operation data is not generated in a predetermined time, the wireless input unit enters into the standby mode and sends a standby mode setup command setting up the standby mode to the host digital terminal through the occupancy channel.
1 Assignment
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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.
10 Citations
40 Claims
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1. A wireless input unit of human interface device 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 as employing a time divisional two-way communication scheme;
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wherein the wireless input unit comprises an operation active mode for transmitting operation data generated by an internal operation of the wireless input unit through the occupancy channel, a standby mode for maintaining a lower power state than the operation active mode and sensing an interference on the occupancy channel, and a channel setup mode for communicating data used to set up the occupancy channel through the emergency channel and setting up the new occupancy channel; wherein when there is no interference on the occupancy channel, the wireless input unit communicates the operation 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 that includes substitute channel information to set up a new occupancy channel as the occupancy channel with the host digital terminal through the emergency channel; and wherein when the operation data is not generated in a predetermined time, the wireless input unit enters into the standby mode and sends a standby mode setup command setting up the standby mode to the host digital terminal through the occupancy channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A host digital terminal wirelessly connected to a wireless input unit of human interface device 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 as employing a time divisional two-way communication scheme;
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wherein the host digital terminal comprises an operation active mode for receiving operation data of the wireless input unit through the occupancy channel, an standby mode for maintaining a lower power state than the operation active mode and sensing an interference on the occupancy channel, and a channel setup mode for communicating data used to set up the occupancy channel through the emergency channel and setting up a new occupancy channel; wherein when there is no interference on the occupancy channel, the host digital terminal communicates the operation 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 as the occupancy channel, and communicates the data through the emergency channel; and wherein the host digital terminal enters into the standby mode by a standby mode setup command sent from the wireless input unit through the occupancy channel. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A wireless communication method in a wireless input unit of human interface device 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 as employing a time divisional two-way communication scheme, the method comprising the steps of:
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a) when receiving data that includes substitute channel information to set up a new occupancy channel as the occupancy channel through the emergency channel, analyzing the data to set up the new occupancy channel, obtaining the substitute channel, and setting up the substitute channel as the 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, wherein the wireless input unit outputs a standby mode setup command setting up the standby state through the occupancy channel. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 40)
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25. A wireless communication method in a host digital terminal of a computer 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 as employing a time divisional two-way communication scheme, 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 new occupancy channel as the occupancy channel, and transmitting the data through the emergency channel; b) when receiving operation data of a wireless input unit through the occupancy channel, converting the operation data into a format recognized by the computer, and transmitting the converted data to the computer; c) when informed that the wireless input unit enters into an operation standby state by a standby mode setup command transmitted through the 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 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 (26, 27, 28, 29)
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30. A wireless communication method in a human interface apparatus having a host digital terminal connected via cable to a computer 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 as employing a time divisional two-way communication scheme, 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 including substitute channel information to set up a new occupancy channel as 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, wherein the host digital terminal enters into the operation standby state by receiving a standby mode setup command sent from the wireless input unit through the occupancy channel. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification