摘要:
An optical demodulator includes a nonlinear element which responds to both light and a microwave-submillimeter wave (far infrared radiation). An optical signal modulated by a modulating wave in which a subcarrier consisting of the microwave-submillimeter wave is modulated by a signal wave, and a local oscillated signal consisting of a microwave-submillimeter wave the same in frequency as the subcarrier are added to the nonlinear element, to fetch the signal wave by a heterodyne system.
摘要:
A small-sized office computer includes a cathode ray tube displaying a plurality of desired ruled line frames and desired characters or other information on the display during execution of business processes. The screen information is stored on a recording medium such as a floppy disc. Means are provided for specifying parameters in response to introduction of information into respective ruled line frames and programs are prepared using the parameters. The screen information is read and displayed through execution of said programs.