Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 375/2.1
Name: Pulse or digital communications >

Sub-classes under this class:

Class Number Class Name Patents
375/130 Spread spectrum 2,191
375/211 Repeaters 413
375/216 Apparatus convertible to analog 253
375/218 Earth or water medium 21
375/219 Transceivers 2,218
375/224 Testing 1,331
375/229 Equalizers 1,465
375/237 Pulse number modulation 52
375/238 Pulse width modulation 654
375/239 Pulse position, frequency, or spacing modulation 419
375/240 Bandwidth reduction or expansion 1,530
375/242 Pulse code modulation 592
375/256 Pulse transmission via radiated baseband 154
375/257 Cable systems and components 1,170
375/259 Systems using alternating or pulsating current 1,585
375/286 Multilevel 407
375/295 Transmitters 3,044
375/316 Receivers 3,914
375/353 Pulse amplitude modulation 192
375/354 Synchronizers 2,488
375/377 Miscellaneous 722

Patents under this class:

Patent Number Title Of Patent Date Issued

  Recently Added Patents
Power converter for an LED assembly and lighting application
High conductive water-based silver ink
Compounds, compositions and use
Reducing energy and increasing speed by an instruction substituting subsequent instructions with specific function instruction
Organic electroluminescence element
Portable electric circular saw
Fast port switching in an audiovisual receiver by use of port pre-authentication by a partial PHY decoder core
  Randomly Featured Patents
Chemisorptive metal alloy and method of using the same
Preparation of carbocyclic compounds
System and apparatus for counting hanging garments
Method for selecting a signal, and a cellular radio system
Counterbearing for a spring of a selector lever assembly and method of making same
Retractable jack
Stability detection method and apparatus for a tuning system
Semiconductor device having diffraction grating
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
Excitation cancelling free electron laser