摘要:
The credit card information management system checks the creditability of a credit card intended to be used for purchase of goods or service by using the card information owned by member stores of credit companies. A host computer of the card management center outputs information regarding the validity or invalidity of a credit card of a customer member of a credit company as card information, a transmission facility wirelessly transmits digital data of the card information. A receiving facility of a member store receives radio signals of the card information and checks whether or not there is any missing of data. If any missing occurs, a transfer of the missed data is requested to the host computer. A terminal computer extracts only the card information necessary for one's own store from the data outputted by the host computer and data outputted in response to the transfer request and stores the same in memory, and the terminal computer outputs judgement of validity or invalidity of a credit card inputted into a card reader.
摘要:
A system for managing sales of goods for vending machines includes a goods control center, a plurality of vending machines, and terminal computers equipped in the respective vending machines. The goods control center includes a host computer for preparing digital data signals as control instructions, and a frequency moderation sub-carrier broadcasting facility as a transmission facility for outputting the digital data signals. Each vending machine has a receiving facility for receiving the digital data signals from the goods control center, and a responding facility. Each terminal computer receives the digital data signals and selectively extracts the digital data as the control instructions necessary for the vending machine to thereby store the digital data necessary for the vending machine in a memory. Each terminal computer controls the vending machine on a basis of the control instructions stored in the memory, obtains goods market information of the vending machine, and outputs the goods market information to the responding facility for reporting the information to the host computer at the goods control center.
摘要:
A prefix corresponding to a data block at the head of each of data groups in data of a layer 3 of a received FM multiplex broadcast program and data of a layer 4 of the received FM multiplex broadcast program are stored in first storage means. When a data retention command is entered, the data of the layer 3 is produced on the basis of the prefix and the data of the layer 4 which are stored in the first storage means, and the produced data of the layer 3 is retained in second storage means as versatile recording and reproducing data.
摘要:
An FM multiplexed broadcasting signal received by an antenna and FM-demodulated by an FM tuner portion is demodulated by a demodulation LSI into a digital signal corresponding to packet data. The digital signal is successively supplied by every packet to a CPU of a receiving portion. The CPU of the receiving portion removes unnecessary data of the received data and then supplies only data required for a CPU of a personal computer via a buffer without delay from the reception. When a transferred packet is a successive reproduction program packet or a time information packet, the CPU of the personal computer calculates latency required before a predetermined data analysis processing is started, and performs data analysis processing in an elapse of the latency. Responsively, reconfiguration of program data is performed and corresponding character information or the like is output to a displaying portion.
摘要:
A projection system includes a screen, a projection display apparatus for projecting a video image on the screen, and a mount base provided below a projection surface of the screen, for carrying a subject on its upper surface. The projection display apparatus is mechanically coupled to the screen such that video image light from the projection display apparatus is displayed on the screen. Projection display apparatus includes a light source, an imaging portion including the upper surface of the mount base at least in an imaging area, a light modulation portion for modulating light from the light source to generate the video image light based on an input video image or a video image picked up by the imaging portion, and a projection portion for projecting the video image light generated by the light modulation portion.