Abstract: A control apparatus of an audio-visual display apparatus is provided, wherein only one remote control unit in a plurality of remote control units has a control right for controlling the audio-visual display apparatus, the control apparatus determines whether a signal is received from a remote control unit with the control right until a scrambling determination time elapses from a time when detecting that an operation command is received from a remote control unit without the control right; and deprives the remote control unit with the control right of the control right and provides the control right to other remote control unit if a signal is not received from the remote control unit with the control right within the scrambling determination time.

Abstract: A capacity variable link apparatus including a main signal system and a control signal system is provided. The main signal system includes: an upper layer signal accommodation part; a lower layer path termination part; and a signal switching part for dividing the upper layer signal to lower layer signals in a lower layer path group having a capacity that is determined according to an amount of traffic of the upper layer signal. The control system includes: a traffic amount measuring part for measuring the amount of traffic of the upper layer and for determining whether the capacity of the lower layer path group is to be increased or decreased according to the amount; and a signal switching management part for controlling the signal switching part according to the result of the determination.

Abstract: A water-repellent coating has tetrafluoroethylene resin powder, silicone resin binder, and organic solvent. The tetrafluoroethylene resin powder has a ratio of the peak absorbance at 1,800 cm−1 to the peak absorbance at 500 cm−1 of 0.0001 to 0.05 exclusive. A coating film is formed by applying such a coating on a substrate. The coating has the properties of high water repellency, excellent anti-ice-coating, excellent anti-snow-coating, and so on, in spite of not having a large amount of fluororesin powder. In addition, the coating of film keeps the water repellency regardless of whether the coating film is immersed into water for a long time.

Abstract: A method of mapping a large number of items of contents each having meta-information to a low dimensional space so that the map of the contents reflects the meta-information. The method includes the steps of assigning a concept vector to each item of contents, adjusting the distance between two items of contents so that the closer the classification information of the two items of contents match, the more the distance is reduced, and assigning position information in the low dimensional space to each item of contents based on the adjusted distance.

Abstract: In an asynchronous transfer mode network (401), a network controller (404) is connected to terminal equipment units (406) through logic transmission line circuits (408) so as to receive a call signal which includes a parameter representative of a network class and which is produced by one of the terminal equipment units. Each of the terminal equipment units is connected to one of ATM exchangers (402) each of which is connected to at least one of them. The control network controller is connected to the ATM exchangers through logic transmission line circuits (405) so as to order them to admit a connection required by the call signal.

Abstract: A personal computer having a convenient handset for transmitting and receiving a call. A handset (20) is connected to a personal computer (10) connected to a communication line. The personal computer (10) outputs audio data, received through the communication line, to the handset (20). The personal computer (10) includes an audio driver (12) to output audio data from the handset (20) to the communication line and a communication port driver (11) to transmit and receive audio data between it and the handset (20). The handset (20) is connected through an RS-232C cable (30) to the personal computer (10). The handset (20) transmits audio data to the personal computer only when a hookswitch (HS) is placed in the off-hook state. The audio driver (12) detects the condition of the hookswitch HS based on the existence of audio data from the handset (20).

Abstract: At the coder side, bits of samples of each frame of an input digital signal are concatenated every digit common to the samples across each frame to generate equi-order bit sequences, which are output as packets. At the decoding side, the input equi-order sequences are arranged inversely to their arrangement at the coder side to reconstruct sample sequences. When a packet dropout occurs, a missing information compensating part 430 correct the reconstructed sample sequences in a manner to reduce an error between the spectral envelope of the reconstructed sample sequence concerned and a known spectral envelope.

Abstract: In an optical module having a silicon substrate, a plurality of optical semiconductor devices and optical waveguides for performing transmission of optical signals by the semiconductor devices integrated on the silicon substrate, the silicon substrate is doped with an impurity to increase the number of carriers in the silicon substrate for suppressing optical crosstalk between the plurality of optical semiconductor devices, the optical waveguide is composed of a core part and a peripheral cladding layer of the core part, or optical fibers each coupled with each of the semiconductor devices, and an electrical resistivity of part or all of the silicon substrate is 0.

Abstract: Numbers 1, 2, . . . , M are assigned to bidding prices from the minimum to maximum values V1 to VN. For a bidding value Vvi each user 11-i generates two sequences of information si={si,1, si,2, . . . , si,M} and ti={ti,1, ti,2, . . . , ti,M} such that si,1=ti,1, . . . , si,vi−1, si,vi≠ti,vi, . . . , si,M≠ti,M, then secretly sends the two sequences of information si and ti to quantitative competition apparatuses 15A and 15B, respectively, and sends hash values H1i=h(si) and H2i=h(ti) of the two sequences of information si and ti and a hash value h(Vvi∥ri) containing an intended value Vvi to a bulletin board apparatus 21.

Abstract: A device which is capable of storing moving picture data received from each terminal and providing each terminal with video information to be reproducible by rapidly forwarding or reversing at any desired speed independent of usable terminals. A video storage type communication device 30 with a receiving portion 35 and a transmitting portion 38 transmits and receives video data over a communication network 10 to and from each terminal 1-n. A coded video data received from terminals 1-n is stored as it is in a first storage portion 32 and, at the same time, the data converted into specially reproducible video information is stored in the second storage portion 33. At the time of reproducing, the reproduction control portion 35 controls the reproduction selector switch 36 to obtain the video data from the first storage portion 32 or the second storage portion 33, changing the reproduction mode from ordinary to the rapid forwarding/reversing and vice versa.

Abstract: An information processing device for acquiring usage data of an application on the information processing device loads a monitoring library when an application is launched. The monitoring library intercepts event information arising from the application at some midpoint between the application and an operating system, or between the application and a library, selects some events among the event information, and interprets the selected events on the basis of a predetermined process. Then, the monitoring library sends the event information to a monitoring process. The monitoring process creates usage data on the basis of the event information and stores the usage data in a file.

Abstract: The present invention relates to an electro-optic sampling oscilloscope which carries out measurement of a measured signal using an optical pulse generated based on a timing signal from a timing generation circuit. The timing generation circuit includes a frequency measurement circuit which generates a gate signal for a gate interval which is a specified multiple N of the cycle of the desired sampling rate, and counts the input trigger signals during the gate interval of the gate signal; a division circuit which divides the count value of said frequency measurement circuit by the specified multiple N, and determines a divider ratio; and a frequency divider which divides the trigger signals by the divider ratio determined by the division circuit, and outputs the result as the timing signal.

Abstract: A connector plug can be removably snap-fitted into the adapter which has a cavity into which the connector plug is inserted and a hole for locking the connector plug. The connector plug has: an optical fiber; a ferrule; housing; an elastic engagement piece with an projecting engagement portion and a projecting press portion, the engagement portion being adapted to snap into the hole of the adapter and become locked there when the connector plug is inserted into the adapter; and a stopper for locking the elastic engagement piece from being pressed. A height of the projecting press portion is set almost flush with a surface of the housing of the adapter, or is set almost equal to the height of the receptor portion of the adapter. Therefore, the connector plug can easily be connected to and disconnected from the adapter and its connection with the adapter is not easily broken.

Abstract: A method and apparatus for measuring the resonance frequency of an electric circuit with low disturbance and high accuracy is disclosed. An electrooptic crystal, whose refractive index changes according to the strength of an applied electric field, is used as a sensor, and a frequency-sweep electromagnetic wave is applied to a resonance section of an electric circuit from an external device. The induced current flowing in the resonance section generates an electric field, which is detected by measuring the refractive index of the electrooptic crystal in the form of the relevant light intensity. The resonance frequency is determined based on the maximum electric field strength.

Abstract: A packet multiplexer capable of realizing the optimization of a communication path automatically, without requiring a user to explicitly specify for it, is disclosed. The packet multiplexer is formed by a plurality of first communication interfaces for terminating a plurality of C-plane and U-plane pairs on one side of the packet multiplexer, a second communication interface for terminating a single C-plane and a plurality of U-planes on another side of the packet multiplexer, a connection interface for multiplexing the C-plane and U-plane pairs terminated at the first communication interfaces into the single C-plane and the plurality of U-planes terminated at the second communication interface, and a control unit for controlling multiplexing of U-planes by the connection interface according to signaling through C-planes, such that a cut-through is made within the packet multiplexer between two U-planes terminated at the first communication interfaces that form a loop.

Abstract: In a wireless access system which uses the sector antenna of a radio base station to transmit an access channel to and receive an access channel from a radio terminal in each frame, and which switches the sector at each frame, the sector ID s is set in a specific functional relation to the access channel ID a, and a radio terminal which communicates with a radio base station transmits and receives in accordance with the access channel ID a without knowing the sector ID s.

Abstract: An optical fiber ribbon includes a plurality of optical fibers arranged in a row and an outer coating formed around the optical fibers. Each of the optical fibers has a core, a cladding, and a non-strippable thin coating made of synthetic resin with a Young's modulus of 50 kg/mm2 to 250 kg/mm2 at room temperature and coated around the cladding. The concentricity of the core to the diameter of the non-strippable thin coating is 1 &mgr;m or less.

Abstract: The present invention relates to an electro-optic sampling oscilloscope in which an electric field generated by a signal to be measured is coupled with an electro-optic crystal, and an optical pulse outputted from an optical pulse output circuit is caused to enter the electro-optic crystal, and the waveform of the signal to be measured is observed using the polarization state of the optical pulse. The optical pulse output circuit has as the input light thereof a sample optical pulse amplified by an optical amplifier circuit, and outputs, as an optical pulse, the output from an optical filter which blocks the propagation of the spontaneously emitted light of the optical amplifier circuit.

Abstract: In an encryption communication system, an encrypt key ID of an encrypt apparatus appearing on a communication path between terminals is acquired by using a key seek packet, and an encrypt key ID is automatically learned based upon a key seek response packet for notifying the acquired encrypt key ID. As a result, communication data between the terminals are encrypted/decrypted, transparently relayed, and discarded by the respective encrypt apparatuses. Even when a communication network is made large and complex, the network for the encrypt communication can be readily managed.

Abstract: Representative vectors Z1i and Z2j are selected from code-books codebooks CB1 and CB1 CB2, respectively, and multiplied by weighting coefficient vectors w1 and w2 of the same number of dimensions as those of the representative vectors, whereby weighted representative vectors Z1iw1 and Z2jw2 are generated. These weighted representative vectors are vector combined into a combined vector yij, and a combination of the representative vectors is selected by a control part in such a manner as to minimize the distance between the combined vector yij and an input vector X. The weighting coefficient vectors w1 and w2 each have a maximum component in a different dimension and are selected so that the sum of diagonal matrixes W1 and W2 using components of the weighting coefficient vectors as their diagonal elements becomes a constant multiple of the unit matrix.