Harmony Licensing LLC

U.S. RE42,219


This prior art search report presents the mappings of the various elements of claim 1 of U.S. RE42,219 (‘219 Patent), titled “Multiple-input multiple-output (MIMO) spread spectrum system and method”, from assignee Harmony Licensing LLC, published on 15 March 2011.

This patent relates to antennas, specifically to reducing the effects of shadowing or the blocking and attenuating of transmitted signals from a multipath environment. In multiple-input multiple-output (MIMO) systems, combining received signals at the receiving side can provide better signals. Each receiver antenna is coupled to filters having impulse responses matched to the chip-sequence signals of the spread-spectrum signals. A RAKE and space-diversity combiner combines the detected spread-spectrum signals and the detected multipath-spread spectrum signals to generate a plurality of combined signals.

This preliminary search report includes the following:

  • References found from the preliminary search
  • Claims mapping chart
  • Copies of the selected references with highlighted excerpts
  • Search strategies used in conducting the prior art search


This ParolaPRIME™ report is not legal advice. The suggested correspondences between the features disclosed in the patent-at-issue and those disclosed in each reference reflect what Parola Analytics believes are technical similarities between those respective sets of features. Parola Analytics makes no representation concerning any legal status or effect that may arise from documents mentioned in this report, such as the validity of any apparent priority date or the assertability of any document as prior art against a patent. You should independently obtain legal counsel before attempting to rely on any portion of this report in a legal proceeding.

The references presented in this report are only preliminary and do not represent results from an exhaustive search. For the full report, request a quote.

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1. Parola Analytics and Avontis are distinct entities and operate independently. Any references to Avontis or its services do not constitute a legal partnership. 

2. Parola Analytics does not provide legal services. Our services are limited to research and technical analysis. Any information provided by Parola Analytics should not be construed as legal advice.