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Patent map and technology intelligence report. Stereophonic Systems
3i Analytics, January 2010, Pages: 15
Two-channel systems; Systems employing more than two channels, e.g. quadraphonic; of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other; Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation; of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals; Indicating arrangements; Control arrangements, e.g. balance control.
1. Pace of Invention.
Recent trends and patenting growth patterns.
2. Technology Overview.
Organization of patented inventions into broad and specific technology fields, based on the International Patent Classification system
3. Competitive Intelligence
Major patenting players.
Top inventors .
Key attorneys agents or attorney firms representing innovators.
4. Appendix A
Tabulation of all data used in the report.
Patenting activity for the last 20 years timeframe.
Listing of top 100 players, inventors and agents.
List of references.