摘要:
A path request repeating installation transmits a number of request subchannels used occupationally by communication data to be transmitted to all multiple destination repeating installations existing in paths from an originating source to destination, whereas the multiple destination repeating installations, which received the number of request subchannels from the path request repeating installation, refer to the received number of request subchannels and path information stored in path information storage circuit so as to manage the communication paths respectively.
摘要:
A scheme for interactive video manipulation and display of a moving object on a background image is disclosed. In this scheme a background image stored in a background image storage unit is read out and displayed on a screen, and a manipulation target spatial position is set on the screen. Then, a partial image to be synthesized and displayed is uniquely specified from partial images which are set in correspondence to spatial positions on the background image and representing an object moving on the background image, according to the manipulation target spatial position set by the setting step, and the partial image as specified by the specifying step is read out from a partial image storage unit, and synthesized and displayed at the manipulation target spatial position on the background image. A scheme for realizing a variable speed video playback with a playback speed different from a normal one is also disclosed.
摘要:
The invention provides a wavelength multiplexing transmission apparatus includes a plurality of optical signal outputting sections for outputting optical signals having different wavelengths from each other, and a wavelength multiplexing section for wavelength multiplexing the optical signals outputted from the optical signal outputting sections and sending out a resulting optical signal. Each of the optical signal outputting sections includes a transmission light source (1) driven by an electric signal for outputting an optical signal of a predetermined wavelength, and a wavelength filter (2) capable of passing therethrough and sending out only an optical signal of the predetermined wavelength to be outputted from the transmission light source (1) to prevent a wavelength drift of the optical signal outputted from the transmission light source (1). A variation of the wavelength of the transmission light source is detected, and the transmission light source is shutdown in order to prevent otherwise possible crosstalk with another channel and prevent a further influence of the same.