2600: Communications
- 2610 Computer Graphic Processing, 3D Animation, Display Color Attribute, Object Processing, Hardware and Memory
- 2620 Selective Visual Display Systems
- 2630 Digital and Optical Communications
- 2640 Telecommunications: Analog Radio Telephone; Satellite and Power Control; Transceivers, Measuring and Testing; Bluetooth; Receivers and Transmitters; Equipment Details
- 2650 Videophones and Telephonic Communications; Audio Signals; Digital Audio Data Processing; Linguistics, Speech Processing and Audio Compression
- 2660 Digital Cameras; Image Analysis; Applications; pattern Recognition; Color and Compression; Enhancement and Transformation
- 2670 Facsimile; Printer; Color; halftone; Scanner; Computer Graphic Processing; 3-D Animation; Display Color; Attributes; Object Processing; Hardware and Memory
- 2680 Telemetry and Code Generation; Vehicles and System Alarms; Selective Communication; Dynamic Storage Systems; Mechanical parts of Disk Drives; Signal Processing and Control Processing in Disk Drives
- 2690 Selective Visual Display Systems
- 2699 Search and Classification Examiner Art Unit