Patent ID: 6957284

Claim:
A peripheral communication device, comprising: a pendant interface component that is coupled to a first data line and a first clock line, wherein the pendant interface component is arranged to receive a first clock signal from the first clock line, receive data from the first data line to provide a first received data when in a first operating mode, and send a first transmit data to the first data line when in a second operating mode, wherein the pendant interface component is arranged to analyze the first received data to identify a device identifier that is associated with the received data from the first data line; and a host interface component that is coupled to a second data line and a second clock line, wherein the host interface component is arranged to provide a second clock signal to the second clock line, receive data from the second data line to provide a second received data when in a third operating mode, send a second transmit data to the second data line when in a fourth operating mode, process the second received data to provide the first transmit data to the pendant interface component, and process the first received data to provide the second transmit data when the first received data is associated with another device identifier; and a user device interface component that is coupled to the pendant interface component and arranged to receive the first received data and send the first transmit data.