1
Hirotsugu Ohwaki, Yutaka Yamashiki: Compact expandable electronic signal processing apparatus. Sony Corporation, Lewis H Eslinger, Alvin Sinderbrand, July 16, 1985: US04530066 (70 worldwide citation)

An electronic signal processing apparatus, such as, a personal computer, is basically composed of a power section for providing DC operating power from an AC power source and a main signal processing section operative by the DC operating power for performing the minimal necessary functions. The powe ...


2
Hirotsugu Ohwaki, Kiyoshi Yoneda: Keyboard and video camera control system. Sony Corporation, Jay H Maioli, September 1, 1998: US05801771 (12 worldwide citation)

A keyboard has a joyball centrally positioned and operable by the operator with a hand, and a plurality of operation keys operable by the operator with the fingertips and disposed in a substantially semicircular array around the joyball. The keyboard is connected to a video camera for controlling th ...