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Class Information
Number: 348/427
Name: Television >
Description:










Sub-classes under this class:

Class Number Class Name Patents
348/14.01 Two-way video and voice communication (e.g., videophone) 1,115
348/162 Responsive to nonvisible energy 130
348/169 Object tracking 1,187
348/173 Cathode-ray tube burn-in prevention 126
348/175 Camera with built-in test signal generator, test pattern, or adjusting adjunct 68
348/177 Display or receiver with built-in test signal generator, test pattern, or adjusting adjunct 109
348/180 Monitoring, testing, or measuring 653
348/195 Mechanical optical scanning 53
348/206 Special scanning (e.g., spiral, random, zigzag) 48
348/207.99 Camera, system and detail 972
348/21 Plural transmitter system considerations (e.g., interference reduction) 167
348/22 Slow scanning transmission (e.g., still frame) 44
348/24 Plural still images over conventional channel 29
348/25 Image falsification to improve viewer perception of selective object (e.g., moving object or target) 62
348/31 Back scatter reduction 63
348/32 Pseudo color 70
348/35 Pseudo black and white 8
348/36 Panoramic 603
348/377 Cathode-ray tube display excessive voltage control 78
348/379 Cathode-ray tube display automatic black level bias control 94
348/380 Cathode-ray tube display beam current control 138
348/383 Modular image display system 178
348/384.1 Bandwidth reduction system 246
348/40 Holographic 106
348/42 Stereoscopic 930
348/441 Format conversion 1,203
348/460 Diverse device controlled by information embedded in video signal 335
348/461 Nonpictorial data packet in television format 344
348/469 Format 184
348/497 Flutter or jitter correction (e.g., dynamic reproduction) 137
348/500 Synchronization 378
348/552 Combined with diverse art device (e.g., computer, telephone) 1,050
348/553 Basic receiver with additional function 503
348/571 Image signal processing circuitry specific to television 491
348/61 Special applications 394
348/722 Studio equipment 352
348/723 Television transmitter circuitry 292
348/725 Receiver circuitry 955
348/739 Video display 192
348/844 Miscellaneous 18
348/901 High speed television system 6
348/902 Photochromic 9
348/903 Including side panel information in single channel 11
348/904 Separation or joining of side and center panels 15
348/905 Reproduction of a color field or frame 4
348/908 Convertible circuits (e.g., y/c separation or noise reduction) 6
348/909 Noise responsive signal processing 8
348/910 Flicker reduction 157
348/911 Line doubler adapted for reproducing program originally from film (e.g., 24 frame per second) 50
348/912 Differential amplitude consideration (e.g., amplitude vs. frequency) 4
348/913 Letterbox (e.g., display 16:9 aspect ratio image on 4:3 screen) 81
348/914 Delay for equalization 22


Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
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