C-MEDIA ELECTRONICS INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 5442
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 4103
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 2157
 
  
 
G10K SOUND-PRODUCING DEVICES 233
 
  
 
H03G CONTROL OF AMPLIFICATION 250
 
  
 
H03L AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES 278
 
  
 
H03F AMPLIFIERS 182
 
  
 
H03K PULSE TECHNIQUE 1130
 
  
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 1110
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9824678 Method, system for self-tuning active noise cancellation and headset apparatusNov 29, 16Nov 21, 17[G10K]
9762253 Reference frequency calibration module and apparatus using the sameMar 16, 15Sep 12, 17[H03L, G06F]
9197178 Headphone with active noise cancelling and auto-calibration method thereofApr 08, 14Nov 24, 15[G10K, H04R, H03G]
8964920 Auto-determining sampling frequency method and device thereofOct 31, 13Feb 24, 15[H04L]
8908719 Clock rate controller and method thereof and electronic device thereofDec 13, 12Dec 09, 14[G06F, H04J]
8803595 Common mode noise cancellation circuit for unbalanced signalsMar 15, 13Aug 12, 14[H03K]
8737640 System, method and apparatus with environmental noise cancellationJan 07, 11May 27, 14[H04B]
8416966 Method of automatic gain modulation and apparatus implementing the sameOct 07, 10Apr 09, 13[H03G]
8364299 Audio signal transmission apparatus avoiding noise generation and method thereofDec 22, 09Jan 29, 13[G06F]
7949808 Auto-execution signal processing method and apparatus performing the methodJun 29, 09May 24, 11[G06F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0142,734 VIRTUAL SIGNAL SOURCE GENERATING APPARATUS AND METHOD THEREOFAbandonedMar 14, 13May 22, 14[G06F]
8525571 Voltage amplitude limiting circuit of full differential circuitExpiredSep 08, 11Sep 03, 13[H03L]
2011/0159,855 METHOD FOR PROVIDING BACKGROUND SOUND TO COMMUNICATION DEVICE AND SYSTEM APPLYING THE METHODAbandonedSep 05, 10Jun 30, 11[H04M]
2011/0014,978 Game ApparatusAbandonedSep 11, 08Jan 20, 11[A63F]
2010/0250,386 Method and system for personalizing online contentAbandonedJul 28, 09Sep 30, 10[G06Q, G06F]
2010/0168,880 Apparatus of combined online music player and chip card reader, and online payment system and method using the sameAbandonedJun 22, 09Jul 01, 10[G06Q, G05B, G06F]
2010/0094,440 Externally-connected audio apparatus and method for processing audio signals thereofAbandonedApr 21, 09Apr 15, 10[G06F]
2008/0101,258 METHOD FOR CONFIGURING NETWORK CONNECTIONS UTILIZING A GRAPHICAL USER INTERFACE SHOWING NETWORK TOPOLOGYAbandonedNov 01, 06May 01, 08[H04L]
2008/0101,330 METHOD FOR WIRELESSLY CONNECTING AND CONFIGURING ACCESS POINTS AND ACCESS POINT CLIENTSAbandonedNov 01, 06May 01, 08[H04J]
2007/0174,512 Method for driving I/O device of storage elementAbandonedNov 29, 05Jul 26, 07[G06F]
2007/0130,534 Graphic user interface with multi-divisional windowAbandonedDec 02, 05Jun 07, 07[G06F]
2007/0119,931 Apparatus for reading/writing storage devicesAbandonedNov 25, 05May 31, 07[G06K]
2006/0071,839 Analog-to-digital converterAbandonedOct 06, 04Apr 06, 06[H03M]
6870494 System of multi-channel shared resistor-string digital-to-analog converters and method of the sameExpiredOct 01, 03Mar 22, 05[H03M]
6434634 Method and apparatus adaptable to a standard game port of a personal computer for interfacing an external HSP modem, a joystick and a MIDI interfaceExpiredJan 06, 99Aug 13, 02[G06F]
2002/0080,977 Architecture for two-channel sound effect hardware to output four-channel analog signal and the method of the sameAbandonedMar 27, 01Jun 27, 02[H04R]

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