摘要:
A device for controlling a color video display which includes ladder resistor units having a plurality of taps; a clock signal generating unit for generating four-phase clock signals having the same frequency as the frequency of a sub-carrier from a clock signal having a frequency which is four times the frequency of the sub-carrier, and a color signal generating unit for receiving data corresponding to colors to be displayed and for generating color signals, by successively selecting taps of the ladder resistor units corresponding to the colors to be displayed, in synchronization with the four-phase clock signals. The generation of color signals having a precise phase angle relationships are ensured by this device.
摘要:
An information delivery system having a service section; a plurality of nodes connected to the service section through a network and allocated with specific addresses that are unique within the network; and terminal devices for system users connected to the service section and the plurality of nodes through the network; wherein the service section acquires profile data of each node user through each node and analyzes the person profile data in order to mediate between each node user and each system user according to the profile data to help exchange information.
摘要:
An operation mode setting system is provided in a microprocessor operable in a plurality of operation modes. The operation mode setting system has a signal input line through which an analog voltage corresponding to any of the respective operation modes is applied to an analog-to-digital converter circuit which is built in the microprocessor. The output signal from the analog-to-digital converter circuit is decoded by a decoder, and the microprocessor is set at the predetermined operation mode in response to the decoded output signal.
摘要:
In a central processing unit, one write address is made to correspond to a pair of registers, and when an instruction output from an instruction decoder is a data transfer instruction to either one of the above-mentioned pair of registers, the data held in one of the above-mentioned pair of registers is kept to be held in either register of the above-mentioned pair of registers and the data from the internal data bus is transferred to the remaining register of the pair of registers, and in response to a read instruction, data is transferred from each register to the internal data bus without changing the contents of the other register.
摘要:
A bit pattern conversion system for converting a sequence of a bit pattern between a central processing unit and a peripheral circuit, including a data bus line connected between the central processing unit and the peripheral circuit, and a conversion circuit provided in the peripheral circuit for converting the sequence of the bit pattern from a most significant bit to a least significant bit, and vice versa, in accordance with a conversion signal.