High-speed communications transceiver
First Claim
Patent Images
1. A serializer/deserializer communications system, comprising:
- a transmitter, the transmitter coupled to receive N parallel bits of data and transmit the N parallel bits of data into K frequency separated channels on a single conducting differential transmission medium, where N and K are integers each greater than one, the N parallel bits being transmitted into the K frequency separated channels of the sterializer/deserializer system synchronously; and
a receiver coupled to receive a sum signal that includes signals from each of the K frequency separated channels from the single conducting differential transmission medium and recover the N parallel bits of data,wherein the receiver includes K demodulators, each of the K demodulators receiving signals on one of the K frequency separated channels, at least one of the K demodulators includingan analog down converter that converts the signal corresponding to that channel associated with the at least one of the demodulators to a base-band signal in a single step;
an analog-to-digital converter coupled to receive the base-band signal from the analog down converter and generate a digitized base-band signal;
an equalizer circuit coupled to receive the digitized base-band signal and create an equalized symbol; and
a decoder that synchronously retrieves the equalized symbol and retrieves a decoder that receives the equalized symbol and retrieves bits associated with the at least one of the K demodulators associated with the at least one of the K demodulators.
11 Assignments
0 Petitions
Accused Products
Abstract
A communication system is disclosed that allows high data-rate transmission of data between components. N-bit parallel data is transmitted in K-frequency separated channels on the transmission medium so as to fully take advantage of the overall bandwidth of the transmission medium. As a result, a very high data-rate transmission can be accomplished with low data-bit transmission on individual channels.
131 Citations
39 Claims
-
1. A serializer/deserializer communications system, comprising:
-
a transmitter, the transmitter coupled to receive N parallel bits of data and transmit the N parallel bits of data into K frequency separated channels on a single conducting differential transmission medium, where N and K are integers each greater than one, the N parallel bits being transmitted into the K frequency separated channels of the sterializer/deserializer system synchronously; and a receiver coupled to receive a sum signal that includes signals from each of the K frequency separated channels from the single conducting differential transmission medium and recover the N parallel bits of data, wherein the receiver includes K demodulators, each of the K demodulators receiving signals on one of the K frequency separated channels, at least one of the K demodulators including an analog down converter that converts the signal corresponding to that channel associated with the at least one of the demodulators to a base-band signal in a single step; an analog-to-digital converter coupled to receive the base-band signal from the analog down converter and generate a digitized base-band signal; an equalizer circuit coupled to receive the digitized base-band signal and create an equalized symbol; and a decoder that synchronously retrieves the equalized symbol and retrieves a decoder that receives the equalized symbol and retrieves bits associated with the at least one of the K demodulators associated with the at least one of the K demodulators. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A method of communicating between components over a single conducting differential transmission medium, comprising:
-
synchronously serializing N bits into K subsets of bits; encoding each of the K subsets of bits to form encoded subsets of bits; mapping each of the K encoded subsets of bits onto a symbol set to generate K symbols representing each of the K subsets of bits; converting each of the K symbols to K analog signals; up-converting each of the K analog signals in a single analog up-conversion step to form K up-converted signals corresponding with a set of K carrier frequencies; summing the K up-converted signals representing each of the K subsets of bits to generate a transmit sum signal; coupling the transmit sum signal to the single conducting differential transmission medium; receiving a receive sum signal from the single conducting differential transmission medium, the receive sum signal being the transmit sum signal after transmission through the single conducting differential transmission medium; down-converting the received sum signal in a single analog down-conversion step for each of the K carrier frequencies into a set of K signals at a base band frequency; digitizing each of the set of K signals to form K digitized signals; equalizing each of the K digitized signals to receive K equalized symbols; and decoding each of the K synchronously equalized symbols to reconstruct the K subsets of bits; and
parsing K subsets of bits ; andparsing K subsets of bits into N deserialized bits. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
-
-
35. A transceiver chip for a serializer/deserializer system, comprising:
-
a transmitter portion, the transmitter portion coupled to receive N parallel bits of data and transmit the N parallel bits of data into a first set of K frequency separated channels on a first single conducting differential transmission medium, the N parallel bits being transmitted into the K frequency separated channels of the serializer-deserializer system synchronously where N and K are integers each greater than one; and a receiver portion coupled to receive data from a second set of K frequency separated channels from a second single conducting differential transmission medium and recover a second N parallel bits of data, wherein the receiver portion includes, K demodulators, each of the K demodulators coupled to receive a signal from the second single conducting differential transmission medium, the signal being a transmit sum signal transmitted through the second single conducting differential transmission medium, and retrieving one of the K subsets of data bits and a bit parsing circuit that receives each of the K subsets of data bits from the K demodulators and reconstructs the N data bits transmitted by the transmitter, and wherein at least one of the K demodulators comprises an analog down-conversion circuit that receives the signal from the second single conducting differential transmission medium and generates a symbol by converting the signal at the carrier frequency appropriate for the one of the K demodulators, an analog to digital converter coupled to digitize the symbol from the analog down conversion circuit, an equalizer circuit coupled to receive the digitized symbol from the analog to digital converter and create an equalized symbol; and a decoder which receives the equalized symbol and synchronously retrieves the one of the K subsets of bits associated with the at least one of the K demodulators. - View Dependent Claims (36, 37, 38, 39)
-
Specification