Digital techniques Signal processing 60 Image processing 21 Integrated circuits 13 Very large scale integration 10 Neural networks (Computer science) 9 Digital communications 7 Data processing 6 Electronic circuits 5 Mathematics 5 Multimedia systems 5 Wireless communication systems 5 Circuits 4 Design and construction 4 Electronic digital computers 4 Electronics 4 Optical pattern recognition 4 Pattern recognition systems 4 Telecommunication systems 4 Adaptive signal processing 3 Array processors 3 Computer networks 3 Electronic circuit design 3 Imaging systems 3 Intelligent control systems 3 Speech processing systems 3 Application specific integrated circuits 2 Application-specific integrated circuits 2 Auditory perception 2 Automatic data processing 2