US 8,526,816 B2 · Optical data bus and method

Abstract

An optical data bus transceiver (110), optical data bus system (100) and method (300) employ a disambiguation signal to resolve bit ambiguities in a summation signal on an optical data bus (104). The optical data bus transceiver includes a transmitter (112) connected to the optical bus and configured, in conjunction with another transmitter (112′, 120), to produce on the optical bus the summation signal during a first interval and the disambiguation signal during a second interval. The optical data bus transceiver further includes a receiver (114) configured to receive (310) the summation signal. The summation signal includes a summation of separate data signals from each of the transceiver transmitter (112) and the other transmitter (112′, 120). The disambiguation signal includes information to resolve bit ambiguities in the summation signal. A bit ambiguity results from a summation of data bits in each of the respective data signals during a symbol period of the first interval.

Claims15

Dependent claims

An optical data bus transceiver (110) comprising:

a transmitter (112) connected to an optical bus (104) and configured, in conjunction with another transmitter (112′, 120), to produce on the optical bus (104) a summation signal during a first interval and a disambiguation signal during a second interval;
and
a receiver (114) configured to receive the summation signal,
wherein the summation signal comprises a summation of separate data signals from each of the transceiver transmitter (112) and the other transmitter (112′, 120), and wherein the disambiguation signal comprises information to resolve bit ambiguities in the summation signal, a bit ambiguity resulting from a summation of data bits in each of the respective data signals during a symbol period of the first interval.

1 more element

An optical data bus system (100) comprising:

a first transmitter (112) configured to provide a first data signal to a data channel during a first interval;
a second transmitter (112′, 120) configured to provide a second data signal to the data channel during the first interval, the first data signal and the second data signal producing a summation signal by adding bit-wise to one another within the data channel;
and
means for providing a disambiguation signal on the data channel during a second interval, the disambiguation signal providing information to resolve bit ambiguities present in the summation signal at a receiver (114, 114′, 140).

1 more element

A method (300) of resolving bit ambiguities in data transmitted on an optical bus, the method (300) comprising:

receiving (310) a summation signal from the optical bus during a first interval, the received summation signal comprising a first signal added to a second signal from respective separate transmitters;
identifying (320) a bit ambiguity in the summation signal, a bit ambiguity resulting from an interference between respective data bits of the first signal and the second signal during a symbol period of the first interval;
and
transmitting (330) a disambiguation signal during a second interval, the disambiguation signal comprising information to resolve the identified bit ambiguity in the summation signal.

1 more element

Dependencies are inferred from the claim text.

Optical data bus and method

Life of this patent

Optical data bus and method

Life of this patent

Abstract

Claims15