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Class Information
Number: 375/352
Name: Pulse or digital communications > Receivers > With electromagnetic relay or solenoid
Description: Subject matter including an electromagnetically operated switch or an electromagnet with an armature which reciprocates within and along the axis of an energized coil.

Patents under this class:

Patent Number Title Of Patent Date Issued
8571157 System for and method of validating a VoIP telephone number order Oct. 29, 2013
8566421 Method for creating and providing layered syndicated data for multimedia content to users Oct. 22, 2013
8311172 Synchronizing high data-rate radio transceivers Nov. 13, 2012
8200779 Method for creating and providing layered syndicated data for multimedia content to users Jun. 12, 2012
8170163 Partial response receiver May. 1, 2012
7720932 Method for creating and providing layered syndicated data for multimedia content to users May. 18, 2010
7587010 Complex filter circuit and receiver circuit Sep. 8, 2009
RE39982 Diversity circuit for magnetic communication system Jan. 1, 2008
7200196 Interpolation based timing recovery Apr. 3, 2007
7177401 TTY communication over packet networks Feb. 13, 2007
7068732 Receiving apparatus and power control method Jun. 27, 2006
6959057 Method of enhancing signal tracking in global positioning system receivers Oct. 25, 2005
6895189 Optical synchronization system May. 17, 2005
6798840 Fast switchover output protection Sep. 28, 2004
6724804 Frequency converter and radio communications system employing the same Apr. 20, 2004
6046681 Remote controlled door lock system Apr. 4, 2000
5912925 Diversity circuit for magnetic communication system Jun. 15, 1999
5859873 Method and arrangement for non-contact transmission of measured values Jan. 12, 1999
5850416 Wireless transmitter-receiver information device Dec. 15, 1998

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