US 2011/0216679 A1Published application

Signal interfacing techniques to simplify integrated circuit radio designs

AssigneeIPR Licensing, Inc.

InventorsGary L. Sugar, Robert M. Masucci, Michael F. Toner

Life of this patent

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Abstract

A signal interfacing technique for connecting signals between a signal processing device and a MIMO radio integrated circuit (IC) involving multiplexing two or more signals on a connection pin between the radio IC and a signal processing device. According to one technique, transmit and receive signals are multiplexed such that during a transmit mode a transmit signal is coupled on the connection pin from the signal processing device to the radio IC, and during a receive mode a receive signal is coupled from the radio IC on the connection pin to the signal processing device. According to another technique, in-phase (I) and quadrature (Q) signals are multiplexed on a connection pin during both transmit and receive modes.

Claims13

Dependent claims

A signal processing device comprising:

a first transmitter and a first receiver, each of which includes an in-phase (I) signal path and a quadrature (Q) signal path;
a second transmitter and a second receiver, each of which includes an in-phase (I) signal path and a quadrature (Q) signal path;
a first transmitter connection pin on which a transmit I signal and a transmit Q signal are multiplexed for connection to the respective I and Q signal paths of the first transmitter;
a second transmitter connection pin on which a transmit I signal and a transmit Q signal are multiplexed for connection to the respective I and Q signal paths of the second transmitter;
a first receiver connection pin on which a receive I signal and a receive Q signal are multiplexed from the respective I and Q signal paths of the first receiver;
and
a second receiver connection pin on which a receive I signal and a receive Q signal are multiplexed from the respective I and Q signal paths of the second receiver.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/092,365Filed 22 Apr 2011
Priority: 30 May 2003
Published: 8 Sep 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

H04B 1/40
Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of…: circuits
H04L 7/0008
Arrangements for synchronising receiver with transmitter: synchronisation information channels, e.g. clock distribution lines
H04B
Transmission
H04L
Digital communication

Family

Application60/474,494Us provisional application · filed 30 May 2003
Application60/481,139Us provisional application · filed 25 Jul 2003
Application10/707,447Continuation · filed 15 Dec 2003
Application11/430,063Continuation · filed 8 May 2006
Application13/092,365Continuation
US 2004/0242183 A1Published application
US 2006/0205380 A1Published application
US 7,058,383 B2Related patent
US 7,937,061 B2Related patent
US 2011/0216679 A1This patent

From the US filing history. Foreign family members aren’t listed.