Abstract: An index image is immediately displayed. A recording and reproduction apparatus records images onto a video medium and reproduces the recorded images. A computer checks whether an index image of the video medium loaded in the recording and reproduction apparatus has been recorded on a hard disk or not. When the index image exists, it is displayed on a monitor. When no index image exists, an instruction to form the index image is instructed to the recording and reproduction apparatus and the formed index image is recorded on the hard disk. In this instance, an ID code to specify the medium is stored on the hard disk and is transferred to the recording and reproduction apparatus for the H1 term of a video signal and is also recorded on the medium.

Abstract: A digital image recording and/or reproducing apparatus using a plurality of compression methods may include, in a recording section, (a) data compression circuitry, including a plurality of compression circuits which have different compression methods, for changing a compression rate for input digital image data by changing a combination of the plurality of compression circuits compressing the digital input image data and (b) circuitry for recording (1) the digital image data compressed by the data compressing circuit and (2) data representing the compression rate of the digital image data compressed by the data compressing circuit.

Abstract: A solid-state camera includes a loading detecting unit for detecting loading of a detachable solid-state memory apparatus, a checking unit for checking the loaded solid-state memory apparatus, and a control unit for performing control of each section which includes predetermined display control in accordance with a check result of the checking unit.

Abstract: A solid-state memory apparatus including a characteristic code holding device for holding a characteristic code representing characteristics of an internal circuit, a readout device for reading out the characteristic code held in the characteristic code holding device, and an output device for outputting the characteristic code read out by the readout device to an external device.

Abstract: An electronic camera including an image pickup element, a solid state memory of relatively small capacity for storing at least one frame of a video signal produced by the image pickup element and a non-solid state memory of relatively large capacity for storing the video signal stored in the solid state memory, wherein these memories each are made releasably attached to the image pickup element.

Abstract: There is disclosed a memory apparatus equipped with a memory capable of random data storage and readout, plural address generators storing start address of each of blocks defined in the memory, a detector for detecting the image processing method used in the input into or output from the memory, and a switching unit for switching the start address of each block according to the output of the detector.

Abstract: A method and system for providing a display on a device to which a detachable solid state memory devices, which includes a plurality of memory blocks, is attached. The method includes the steps of determining to which of a plurality of broadcasting system standards a detected size of each of the memory blocks in the solid state memory device corresponds, and providing a display on an apparatus to which the solid state memory device is attached, such as an electronic still camera, based on the detected size. In a preferred embodiment, the broadcasting standards are NTSC (National Television Systems Committee) and PAL (Phase Alternation Line). A user is warned when a detected size of each of the memory blocks is not a predetermined size, thus, not the correct broadcasting system standard for the apparatus. Each of the memory blocks stores data corresponding to one picture image.

Abstract: A solid-state camera employing as a recording medium a solid-state memory cartridge capable of being loaded into and unloaded from the camera body. First signal-transmission sections are provided on the camera body and a solid-state memory cartridge for permitting the transmission of a signal between the camera body and a solid-state memory cartridge loaded therein while assuming a first loading state. At least one second signal-transmission section is provided on the camera body for permitting signal transmission between the camera body and a solid-state memory cartridge loaded therein while assuming a second loading state different from the first loading state.

Abstract: A packet communication processing method in a communication apparatus which performs communication with end apparatus for performing data link layer processing according to a data link protocol such as HDLC or similar protocol, in which method information frames (I frames) are received regardless of the rightness of a sending sequence number N(S) which is included in a control field (C field) in each of the received information so as to indicate the sequence of the I frames.

Abstract: A level machine information system is provided with an instruction register for storing an address of an instruction read out from an instruction memory, an instruction decoder for producing control signals complying with the instruction read out, a calculator for producing a new address of an instruction to be executed next on the basis of the address outputted from the instruction register, an instruction length code supplied from the decoder as the control signals, a plurality of first registers for saying the address outputted from the instruction register, a plurality of second registers for saving the new address, a controller and a selector for supplying the instruction register with the new address, the saved new address and fixed addresses each indicating the head of interruption programs in the instruction memory. The first and second registers correspond to all but the highest interruption priority level.

Abstract: An erasing device of the invention is adapted to erase information signals recorded in concentric circular tracks formed on a disc-shaped magnetic recording medium. A reference signal is first counted. According to the counted value, a plurality of kinds of first count data are caused to generate. Further, of the plurality of kinds of first count data, the first count data which represents a predetermined counted value is used to generate a reference erasing signal. Meanwhile, as the disc-shaped magnetic recording medium rotates, pulses are formed in synchronism with the period of its rotation. By counting the pulses, a second count data corresponding to the counted value is formed. To generate a first erasing pulse signal and a second erasing pulse signal in response to the reference erasing signal, the first count data and the second count data are compared with each other in magnitude.