Abstract: A receiving apparatus and transmitting apparatus capable of transmitting and receiving a high speed optical signal and a communication system using the same, including a transmitting apparatus having a conversion circuit for converting serially input data to a plurality of bits of parallel data given predetermined information and an LED array having a number of LED units corresponding to the number of bits of the parallel data from the conversion circuit arranged in an array, wherein the LED units are controlled in light emission in parallel based on bit information of corresponding parallel data to emit optical information signals dispersed in a spatially predetermined range, and of a receiving apparatus having a plurality of photo-diodes arranged in an array for emitting electric signals of levels in accordance with amounts of light received, wherein the photo-diodes output electric signals in parallel.

Abstract: A lens unit and a camera capable of achieving stereoscopic television function and zoom function at the same time. More specifically, a lens unit (2) and a camera (1) each including at least a zoom lens (4), light quantity adjusting device (6 or 20), an electronic optical shutter provided on a stage of the zoom lens (4), and an optical shutter driving portion for controlling the electronic optical shutter (6) to open (6A, 6B) in a predetermined pattern.

Abstract: A recording and/or reproducing method for a record medium, comprising the steps of reading address information from a record medium, the record medium having at least a first area and a second area, data being recordable to the first area, the second area being followed by the first area, the address information representing the position of the second area, detecting an error corresponding to error detection code encoded for the address information that has been read from the record medium, and when the result of the detecting step represents that an error has been detected in the address information that has been read from the record medium, notifying at least a user that the error has been detected.

Abstract: In an electromagnetic induction type speaker apparatus, individual constants are set in such a manner that the following formula is satisfied N×(R1×R2)1/2/(2?×L1×(1?k2)1/2>2000 where R1 is the DC resistance of a primary coil; L1 is the inductance of the primary coil; N is the number of turns of the primary coil; R2 is the DC resistance of the secondary coil; L2 is the inductance of the secondary coil; and k is the coupling coefficient of the primary coil and the secondary coil. In addition, the constants L1 and l2 are selected in such a manner that the ratio of the inductance L1 and the inductance L2 becomes equal to the ratio of the DC resistance R1 and the DC resistance R2.

Abstract: A print producing apparatus of a print producing system is provided with a recording medium conveying section which intermittently conveys a strip-like hologram recording medium, a cutting out section which cuts out, as a piece of hologram recording medium, a predetermined region of the recording medium that includes at least a piece of a holographic stereogram image or a hologram from a hologram recording medium, a film retaining section and a film supplying section which one by one provides plural sheets of protecting film PF which are retained, a film opening and closing section which opens and folds a single sheet of the PF which has been folded in two along a folding line of the PF, a mounting retaining and supplying section which one by one provides plural sheets of mountings, and a laminating section which laminates the recording medium piece for hologram and the mounting with the PF.

Abstract: An electronic device according to the present invention comprises: a cabinet containing an electronic circuit; a covering member containing wire rods connected to the electronic circuit and led to the outside through an opening of the cabinet; a pivoting convex portion provided in one of the covering member and the cabinet; and a pivoting concave portion which is provided in the other of the covering member and the cabinet and supports the pivoting convex portions, wherein the covering member is pivotally supported with respect to the cabinet a pivot-supporting unit is provided in the connection cable, whereby pivoting the connection cable through the pivoting unit allows the lead-out direction of the connection cable from an opening of the cabinet to the outside to be selectively changed between a direction in which the connection cable is led downward from the lower surface of the cabinet and a direction sideways intersecting therewith.

Abstract: A transmission apparatus, a reception apparatus, a transmission method, and a reception method, which are used for transmission and reception of encrypted digital data protected against illegal decryption of the encrypted digital data by a third party capable of inferring an encryption algorithm by decryption of a pattern having a known pre-encryption value, and a recording medium for recording the encrypted digital data.

Abstract: A file conversion method, a data converter, and a file display system for extracting data handled by a limited capability display device from a plurality of pieces of data displayable on a standard display unit with a start and an end of each piece of data indicated by respective identifiers and for outputting the extracted data to the device in which the identifier is detected by reading the file and it is then determined whether identified data can be displayed on the limited capability display device. The data identified by the identifier is extracted and an output file, different than the file that was read, is created from the extracted data.

Abstract: Coupling between a unit main body and a front panel is detachably carried out by catching means and coupling means. The coupling means comprise slide means 33 provided with a slide plate 24 which slides with respect to a bracket hardware 24 embedded in the unit main body, and holding means 28 provided at a front face of the slide plate 24 and for holding the front panel.

Abstract: A code sequence is encoded using a code conversion table in which the parity of the code sequence varies until the code states become equal to each other. The code word assignment used in this code conversion table is such that the decoded code word constraint length is 3 blocks and q0?q1 for an arbitrary information sequence is satisfied even if a DC control bit is inserted at any of the first and second bits of an information word. For example, code states s0 and s1 when information sequences d0 and d1 resulted from insertion of provisional DC control bits 1 and 0 inserted at the top of an information sequence “1, 1, 0, 0, 0, 1, 0” are encoded starting with a state 3 according to a predetermined code conversion table are equal to each other, namely, s0=s1=6, in a third block, and two's complement q0 of a sum of code sequences c0 up to a time when the code states are equal to each other is “0” while two's complement q1 of a sum of code sequences c1 up to that time is “1”.

Abstract: A code sequence is encoded using a code conversion table in which the parity of the code sequence varies until the code states become equal to each other. The code word assignment used in this code conversion table is such that the decoded code word constraint length is 3 blocks and q0?q1 for an arbitrary information sequence is satisfied even if a DC control bit is inserted at any of the first and second bits of an information word. For example, code states s0 and s1 when information sequences d0 and d1 resulted from insertion of provisional DC control bits 1 and 0 inserted at the top of an information sequence “1, 1, 0, 0, 0, 1, 0” are encoded starting with a state 3 according to a predetermined code conversion table are equal to each other, namely, s0=s1=6, in a third block, and two's complement q0 of a sum of code sequences c0 up to a time when the code states are equal to each other is “0” while two's complement q1 of a sum of code sequences c1 up to that time is “1”.

Abstract: A recording medium driving device includes a loading unit with a disc loaded on it, a head movement mechanism for moving the recording head toward and away from the disc, an ejection mechanism for ejecting a loaded disc, a driving gear rotated by a drive motor, a joint lever moved by the driving gear rotating in one direction to operate the ejection lever, and a driving lever driven by the driving gear rotating in a reverse direction to operate the head movement mechanism.

Abstract: A decoding apparatus, decoding method, data-receiving apparatus, and a data-receiving method for performing a maximum-likelihood decoding process based on a Viterbi algorithm on a data train completing a convolution-encoding process. The apparatus includes a computation device for performing a trellis computation for decoding a data train completing the convolution-encoding process. The decoding apparatus further includes a control device for controlling the trellis computation to be carried out by the computation device with processing timings in processing units each corresponding to a process carried out on n bits of pre-encoding data, in which each of the processing units is parallel processing carried out on computation results obtained for 2n states with one of the processing timings immediately preceding a present one of the processing timings to find the computation results with the present processing timing for the 2n states.

Abstract: A communication system for performing transmission and reception of a signal over a communication channel assesses a state of the communication channel and produces channel state information accordingly. A block length selector selects block lengths that are dependent on the channel state information and that are selected from a group of block lengths having an integral multiple relationship to produce a schedule of block lengths. Encoding and decoding is performed based on the schedule of block lengths.

Abstract: A communication control processor controls communication of a portable communication terminal with external units, in which a data processing control processor performs communication with the communication control processor and controls a ROM, a RAM, an operating unit, and a display unit. The data processing control processor is supplied with a first clock signal, while the communication control processor is supplied with a second clock signal based on the first clock signal from the data processing control processor. Thus, each of the processors can transmit Universal Asynchronous Receiver Transmitter data even when the other processor is in a sleep state without knowing it, and the other processor can receive the data without an error in reception. Furthermore, the data processing control processor and the communication control processor can turn on/off a high-speed clock, as in a sleep control, independently of each other.

Abstract: A mobile telephone includes an expansion slot to which an expansion display unit is attached by insertion in a way as to be capable of being taken out and put in freely. The expansion display unit is provided with an expansion display section having a display surface larger than that of the main body display section of the mobile telephone. The mobile telephone then displays information on the expansion display section. The large display surface of the expansion display section can display most of the contents of the information to be displayed collectively, which makes it easy to confirm the contents of the information to be displayed and improves the usability of the mobile telephone.

Abstract: A driving device includes a holder (16) movably carried by a chassis (5) and adapted for transporting a disc cartridge the holder holds between an insertion/ejection position and a loading position, and an ejection lever (39) for ejecting the disc cartridge from the holder (16). The driving device also includes a slider (31) movable in a direction of inserting the disc cartridge into the holder (16) and in a direction of ejecting the disc cartridge from the holder. The slider causes the holder (16) to be moved to the loading position when the slider is moved in the disc cartridge inserting direction, while causing the holder (16) to be moved to the insertion/ejection position when the slider is moved in the disc cartridge ejecting direction.

Abstract: A transmitting system is provided in which a data once downloaded in a memory means of a terminal apparatus from an information service center is returned to the information service center while the returned data is deleted from the memory means of the terminal apparatus, and a fee for a next new data purchased by the terminal apparatus from the information service center is discounted or not charged.

Abstract: A content signal having a control signal added thereto indicating whether a playback restricting function for restricting reproduction is activated is recorded on a disk. When an encryption key generation section determines at the time of reproduction that the content signal has the control signal added thereto indicating that the playback restricting function is activated, it is determined whether a playback permission condition is satisfied. The playback permission condition is read from the disk, or acquired via a communication section if it is not stored on the disk. A correct encryption key (Kp) is supplied to an encryption processing section only when the playback permission condition is satisfied. The encryption processing section decrypts the encrypted content signal recorded on the disk with the encryption key (Kp) and the correctly decrypted content signal is outputted from an output control section.

Abstract: In order to improve various characteristics of a receiving circuit for digital radio services, circuits are provided for forming two local oscillation signals, whose frequencies are both the center frequency between a first ensemble and a second ensemble, and whose phases differ by 90° from each other. Furthermore, there are provided mixer circuits for frequency-converting the received signal into intermediate frequency signals in accordance with the local oscillation signals, phase-shift circuits to which the intermediate frequency signals are supplied, and an addition/subtraction circuit for performing one of addition and subtraction of the outputs of the phase-shift circuits. In addition, there are provided intermediate frequency filters to which the output signal of the addition/subtraction circuit is supplied and demodulation circuits to which the output signals of the intermediate frequency filters are supplied.