Patent ID: 8204096

Claim:
An automatic frequency hopping method for use between a wireless input device and a wireless transceiver, said automatic frequency hopping method comprising steps of: (1) allowing said wireless input device to transmit a data to said wireless transceiver in a first communication frequency band, wherein said first communication frequency band has a first transmission parameter; (2) updating said first transmission parameter according to a first result of transmitting said data in said first communication frequency band in said step (1); (3) discriminating whether said wireless input device is allowed to transmit said data to said wireless transceiver in a second communication frequency band according to said first result, wherein said second communication frequency band has a second transmission parameter, wherein said first communication frequency band and said second communication frequency band have the same number of sub-frequency bands; (4) updating said second transmission parameter according to a second result of transmitting said data in said second communication frequency band in said step (3); and (5) discriminating whether a frequency hopping procedure is required to be performed according to said first transmission parameter, said second transmission parameter or a relative ratio between said first transmission parameter and said second transmission parameter, wherein said frequency hopping procedure comprises steps of: allowing said wireless transceiver to transmit a flag data in said second communication frequency band, wherein said flag data includes a sub-frequency band indexing value; allowing said wireless input device to receive said flag signal in said second communication frequency band; and performing data transmission between said wireless input device and said wireless transceiver in sub-frequency bands of said first communication frequency band and said second communication frequency band corresponding to said sub-frequency band indexing value.