摘要:
An IC memory card for storing picture data, character data or similar data. The memory card has an input/output section connectable to a host, a storage implemented by a semiconductor memory, and a controller for writing or reading data out of the storage. The input/output section has a data terminal for receiving an address signal and a data signal each being made up of a plurality of blocks continuously, an address/data discrimination terminal for receiving a bilevel signal for discriminating the address signal and data signal fed to the data terminal from each other, a read/write discrimination terminal for receiving a bilevel signal for discriminating the read-out and write-in of data from each other, and a bus clock input terminal for receiving a bus clock synchronous to each block of the address signal or each block of the data signal.
摘要:
An image data storage/processing apparatus is provided, which is particularly applicable to an electronic still camera, for example. The image data storage apparatus uses a dynamic RAM as a frame memory for temporarily storing image data representative of a field of an image to be recorded. The frame memory includes at least first and second memories. In the apparatus, there is provided a control so that the image data corresponding to the adjacent two pixel lines on the field are continuously read out in such a manner that they are simultaneously read out from the first and second memories, and the image data corresponding to one of the two pixel lines are read out with delay by the time required for reading out of the image data corresponding to the other pixel line. The image signal processing apparatus is capable of performing processing for writing in and reading out of various types of image data with a single memory.
摘要:
A digital electronic still-video camera is capable of performing rapid-sequence photography at high speeds. When a rapid-sequence photographic mode has been set, each of a plurality of frames of image data obtained by such photography is compressed. Image data which forms a single multiple-frame picture is constructed by a set of image data composed of the compressed plurality of frames. Thinning out is performed in order to compress the image data. The image data is successively stored, while being thinned out, at corresponding addresses of an image memory in such a manner that a multiple-frame picture is constructed in the image memory. After photography in the rapid-sequence mode ends, the image data in the image memory is subjected to data compression and then recorded on a memory card.
摘要:
A method of recording data in a memory card having an EEPROM, and a memory card system using the same are provided. A memory card has at least two collective erasure type EEPROM chips where at least one of which is conditioned for a spare memory. When an access of the kind needing overwriting is made to the memory card, data stored in memory locations of the addresses of a corresponding EEPROM chip, except for the address where overwriting is to occur, are copied in the spare memory, and then the EEPROM chip of interest and the spare memory are replaced with each other. The EEPROM chips may be replaced with a plurality of memory blocks or clusters defined in a block erasure type EEPROM.
摘要:
A digital electronic still-video camera is capable of performing rapid-sequence photography at high speeds. When a rapid-sequence photographic mode has been set, each of a plurality of frames of image data obtained by such photography is compressed. Image data which forms a single multiple-frame picture is constructed by a set of image data composed of the compressed plurality of frames. Thinning out is performed in order to compress the image data. The image data is successively stored, while being thinned out, at corresponding addresses of an image memory in such a manner that a multiple-frame picture is constructed in the image memory. After photography in the rapid-sequence mode ends, the image data in the image memory is subjected to data compression and then recorded on a memory card.
摘要:
An IC memory card includes an input/output unit attachable to or detachable from a host processing apparatus, a storage unit having a semiconductor memory for storing data, and a control unit for performing write control of data transmitted from the host processing apparatus into the storage unit and read control of the data stored in the storage unit, which is to be transferred to the host processing apparatus. In such an IC memory card, the storage unit is provided with a fixed area in which fixed information not to be overwritten has previously been written and with a variable area in which rewritable data and management information for the rewritable data are written. The control unit includes an address detector for detecting if the fixed area of the storage unit is accessed and for generating a detection signal if such an access occurs. A read/write controller is included for providing such a control that when the address detector detects the fact that the fixed area of the storage unit is accessed, a control signal for writing of data supplied from the host processing apparatus is masked by the detection signal so as to inhibit the data from being written into the storage unit.
摘要:
The present invention relates to a nitrogen-containing fused ring compound represented by the following formula [I] wherein each symbol is as defined in the specification, or a pharmaceutically acceptable salt thereof, and an anti-HIV agent containing such compound. The compound of the present invention has an HIV integrase inhibitory activity, and is useful as an agent for the prophylaxis or treatment of AIDS, or as an anti-HIV agent. In addition, by the combined use with other anti-HIV agents such as a protease inhibitor, a reverse transcriptase inhibitor and the like, it can be a more effective anti-HIV agent. Becuae it shows integrase-specific high inhibitory activity, the compound can be a pharmaceutical agent safe on human body, which causes only a fewer side effects.
摘要:
A surface hardened aluminum part having excellent heat resistance and abrasion resistance obtained by forming, on the surface of an aluminum base material, an alloy layer that has a uniform composition and uniform hardness, being free from cracks. An aluminum alloy powder made of aluminum and metals each of which forms an intermetallic compound of high hardness with aluminum is prepared. This aluminum alloy powder is supplied onto the aluminum base material and the aluminum or aluminum alloy contained in the aluminum base material is alloyed with the aluminum alloy powder using a high-density energy heat source to form an alloy layer. The alloy layer thus formed has an intermetallic compound of high hardness uniformly distributed throughout the layer so that the hardness of the alloy layer is uniform and cracking is unlikely to occur.
摘要:
Consumption of power in a digital electronic still-video camera is reduced. Specifically, a digital electronic still-video camera includes a first memory module circuit and a second memory module circuit controlled by a memory module circuit so as to be placed in active and standby states. When one memory module circuit is in the active state, the other memory module circuit is placed in the standby state, thereby making it possible to reduce power consumption.
摘要:
In a memory card control device for interfacing an electronic still camera or similar electronic equipment and a memory card removably mounted on the equipment, a data processing device operates only at a supply voltage of 5 volts while a logic circuit operates at a supply voltage of 3 volts. A first level shifter converts the level of signals output from the memory card to a level matching the logic circuit. A second level shifter converts the level of signals output from the logic circuit to 5 volts and transfers it to the processing device, while converting the level of signals output from the processing device to 3 volts and feeding it to the logic circuit. The control device accommodates various kinds of memory cards each having a particular rated supply voltage.