Source: http://www.freshpatents.com/Apparatus-and-methods-for-compensating-for-signal-imbalance-in-a-receiver-dt20120419ptan20120093244.php
Timestamp: 2013-05-25 19:55:06
Document Index: 18508362

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Apparatus And Methods For Compensating For Signal Imbalance In A Receiver n/a views for this patent on FreshPatents.comupdated 05/24/13
Patents sorted by company.	04/19/12 | Class 375 Monitor | RSS | Browse: Prev - Next Apparatus and methods for compensating for signal imbalance in a receiver Abstract: Apparatus, methods and systems for compensating for an I/Q imbalance may include compensating for an imbalance between a first component of a data signal and a second component of the data signal. The data signal may be modulated by a carrier signal having a frequency error. The first component may be characterized by at least one parameter. The method may include receiving the data and carrier signals; selecting a value for the parameter such that the frequency domain energy at negative frequencies is reduced; and modifying at least one of the components based on the value.
Agent: Broadcom Corporation - Irvine, CA, USInventors: Zak Levi, Eliahu ShustermanUSPTO Applicaton #: #20120093244 - Class: 375259 (USPTO) - 04/19/12 - Class 375 Related Terms: Carrier Signal The Patent Description & Claims data below is from USPTO Patent Application 20120093244, Apparatus and methods for compensating for signal imbalance in a receiver.
This is a nonprovisional of the following U.S. Provisional Applications, all of which are hereby incorporated by reference herein in their entireties: U.S. Provisional Application No. 60/866,532, entitled, “A METHOD FOR PACKET AGGREGATION IN A COORDINATED HOME NETWORK”, filed on Nov. 20, 2006, U.S. Provisional Application No. 60/866,527, entitled, “RETRANSMISSION IN COORDINATED HOME NETWORK” filed on Nov. 20, 2006, U.S. Provisional Application No. 60/866,519, entitled, “IQ IMBALANCE COMPENSATION USING 2-TONE SIGNAL IN MULTI-CARRIER RECEIVERS”, filed on Nov. 20, 2006, U.S. Provisional Application No. 60/907,111, “SYSTEM AND METHOD FOR AGGREGATION OF PACKETS FOR TRANSMISSION THROUGH A COMMUNICATIONS NETWORK” filed on Mar. 21, 2007, U.S. Provisional Application No. 60/907,126, entitled, “MAC TO PHY INTERFACE APPARATUS AND METHODS FOR TRANSMISSION OF PACKETS THROUGH A COMMUNICATIONS NETWORK”, filed on Mar. 22, 2007, U.S. Provisional Application No. 60/907,819, entitled “SYSTEMS AND METHODS FOR RETRANSMITTING PACKETS OVER A NETWORK OF COMMUNICATION CHANNELS”, filed on Apr. 18, 2007, and U.S. Provisional Application No. 60/940,998, entitled “MOCA AGGREGATION”, filed on May 31, 2007.
Elements of the existing technologies are specifically designed to propagate backward through splitters (“insertion”) and from output to output (“isolation”). One outlet in a structure can be reached from another by a single “isolation jump” and a number of “insertion jumps.” Typically isolation jumps have an attenuation of 5 to 40 dB and each insertion jump attenuates approximately 3 dB. MoCA™identified technology has a dynamic range in excess of 55 dB while supporting 200 Mbps throughput. Therefore MoCA™-identified technology can work effectively through a significant number of splitters.
FIG. 10 shows a schematic memory configuration in accordance with the principles of the invention;
12A shows an illustrative simulation minimization and FIG. 12B shows various illustrative plots;
FIG. 15 shows an illustrative plot that summarizes simulation results.
Equation 1 shows compensated real and imaginary portions of a compensated signal that would be output from the I/Q imbalance compensation module (see FIG. 2).
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