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Class Information
Number: 375/2.1
Name: Pulse or digital communications >
Description:










Sub-classes under this class:

Class Number Class Name Patents
375/130 Spread spectrum 2,164
375/211 Repeaters 396
375/216 Apparatus convertible to analog 251
375/218 Earth or water medium 21
375/219 Transceivers 2,161
375/224 Testing 1,273
375/229 Equalizers 1,428
375/237 Pulse number modulation 50
375/238 Pulse width modulation 645
375/239 Pulse position, frequency, or spacing modulation 413
375/240 Bandwidth reduction or expansion 1,484
375/242 Pulse code modulation 586
375/256 Pulse transmission via radiated baseband 149
375/257 Cable systems and components 1,139
375/259 Systems using alternating or pulsating current 1,522
375/286 Multilevel 400
375/295 Transmitters 2,939
375/316 Receivers 3,790
375/353 Pulse amplitude modulation 191
375/354 Synchronizers 2,447
375/377 Miscellaneous 714


Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
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