System for transmitting multiple pulses PPM control signal to wireless device to indicate collision in a wired network while placing data on the network

A transceiver for connecting a device to a wired network through a wireless connection, the transceiver comprising:

• a wireless signal detection mechanism configured to receive data over said wireless connection from said device, wherein said data is encoded in a pulse position modulation signal consisting of a series of pulse position modulation frames, wherein each pulse position modulation frame consists of a plurality of pulse windows;
• an interface that is physically coupled to a backbone cable of said wired network;
• a transmission mechanism for placing said data on a backbone cable of said wired network;
• a collision detection mechanism for determining if a collision occurred while placing said data on said backbone cable;
• and
• a wireless signal generation mechanism for transmitting a control signal over said wireless connection to said device if a collision occurred while placing said data on said backbone cable, wherein said control signal is a pulse position modulation signal in which a pulse is sent during more than one pulse window of a pulse position modulation frame.

A computer system comprising:

• a portable processing unit comprising:
• an emitter configured to transmit data over a wireless connection, and
• a detector configured to receive data that is encoded in a sequence of pulse position modulation frames over said wireless connection, wherein each pulse position modulation frame includes a plurality of pulse windows;
• and
• a transceiver optically coupled to the portable processing unit and physically coupled to a wired network, wherein the transceiver comprises:
• a wireless signal detection mechanism configured to receive data over the wireless connection from said portable processing unit,
• an interface that is physically coupled to a backbone cable of said wired network,
• a transmission mechanism for placing said data on a backbone cable of said wired network,
• a collision detection mechanism for determining if a collision occurred while placing said data on said backbone cable, and
• a wireless signal generation mechanism for transmitting a control signal over said wireless connection to said portable processing unit if a collision occurred while placing said data on said backbone cable, wherein said control signal is a pulse position modulation signal in which a pulse is sent during more than one pulse window of a pulse position modulation frame.