摘要:
A wired circuit board has a metal supporting board, an insulating base layer formed on the metal supporting board, a conductive pattern formed on the insulating base layer and including at least one pair of wires arranged in mutually spaced-apart and opposed relation having different potentials, a semiconductive layer formed on the insulating base layer to cover the conductive pattern and electrically connected to the metal supporting board on one side outside a region where the pair of wires are opposed, and an insulating cover layer formed on the semiconductive layer.
摘要:
A recording and reproducing system is broken down into a recording unit for producing a digital audio data signal from MIDI music data words asynchronously produced at irregular intervals and a playback unit for reproducing the MIDI music data codes from the digital audio data signal, wherein synchronous data nibbles are supplemented in the irregular intervals among the MIDI music data words for producing a data stream, and the digital audio data signal is produced from the data stream through a differential phase shift keying and a phase code modulation so as to record the MIDI messages in a digital versatile disk at high dense.
摘要:
The invention provides a wired circuit board that can prevent deterioration of a conductive pattern and short-circuiting of the conductive pattern. The wired circuit board is presented herein in the form of a suspension board with circuit which comprises an insulating base layer formed on a metal supporting board, a conductive pattern formed on the insulating base layer, a metal oxide layer formed on a surface of the conductive pattern and on a surface of the insulating base layer by sputtering, and an insulating cover layer, formed on the metal oxide layer, to cover the conductive pattern. According to this suspension board with circuit, since the metal oxide layer to cover the conductive pattern is formed by the sputtering, the metal oxide layer can be formed with a uniform thickness. Hence, the metal oxide layer can fully function as a barrier layer to the conductive pattern and, accordingly, deterioration of the conductive pattern and the short-circuiting of the conductive pattern can be prevented effectively.
摘要:
To provide a semi-conducting resin composition capable of forming a semi-conducting layer which exhibits a less variable surface resistivity even when subjected to ultrasonic cleaning and effectively discharges static electricity and also provide a wired circuit board comprising the semi-conducting layer composed of the semi-conducting resin composition, an imide resin or a precursor of an imide resin and conducting particles are mixed in a solvent so that the semi-conducting resin composition containing the imide resin or imide resin precursor dissolved therein and the conducting particles dispersed therein is prepared. Then, the semi-conducting resin composition is coated on a surface of an insulating cover layer (5) including the terminal portion (6) of a suspension board with circuit (1) and dried to form a semi-conducting layer (7). Thereafter, the semi-conducting layer 7 formed in the terminal portion (6) is removed by etching.
摘要:
An information transmission system is broken down into a sound recorder, a transmission medium and a sound reproducer; a digital audio signal is produced from MIDI music data words through any kind of modulation technique such as, for example, Y-modulation technique, P-modulation technique or Q-modulation technique, and the digital audio signal is transferred from the sound recorder through the transmission medium such as a magneto-optic disc, a wire communication network or the free space to the sound reproducer, when the digital audio signal reaches the sound reproducer, the sound reproducer analyzes the digital audio signal to see what modulation technique was employed to produce it, and demodulates the digital audio signal through an appropriate demodulation technique, thereby permitting user to employ any sound recorder to produce the digital audio signal.
摘要:
Mixer apparatus includes: a plurality of input channels and output channels; a signal processing device that sets a parameter for each of the plurality of input channels and/or output channels; and a signal processing device having a construction specialized in matrix operations. The signal processing device acquires a predetermined mixer conversion matrix corresponding to a combination of the respective numbers of input and output channels, calculates individual elements of the mixer conversion matrix on the basis of parameters set via the setting device, and performs a matrix operation of the mixer conversion matrix, using the individual calculated elements, in response to receipt of input signals for an input matrix.
摘要:
A method and an apparatus for decomposing halogenated hydrocarbon gas economically and stably without relying on any special treatment and without generating dioxins. A catalyst to decompose halogenated hydrocarbon gas, 4, is supported on a carrier 3. A target gas, which contains the halogenated hydrocarbon gas, is passed through the carrier 3, while heating the carrier 3 using an electromagnetic induction heating mechanism 5, 6.
摘要:
A data transmission system for a vehicle includes a plurality of control systems installed on the vehicle, and a network bus connecting the plurality of control systems with each other for circulating a transmission right through the plurality of control systems to thereby perform transmission of a message between the plurality of control systems. According to a first aspect, each of the control systems starts transmitting data when it is detected that the transmission right is not generated or lost from the system, and continues transmitting the data when no collision of data transmitted from the present control system with data transmitted from the rest of the plurality of control systems, or when by mediation for avoiding the collision is detected, it is determined to continue data transmission. According to another aspect, the maximum number of times of retransmission to be permitted is determined according to a type of failure in transmission identified, and the retransmission is performed so long as the number times of retransmission of the data does not exceed the maximum number of times of retransmission to be permitted. According to still another aspect, the message comprises a first response field for receiving a first acknowledging response output from a control system having received the transmission right, and a second response field for receiving a second acknowledging response output from a control system having received data.
摘要:
A data transmission system for an automotive vehicle includes a plurality of control units installed on the vehicle, and a transmission line connecting the plurality of control units with each other. The transmission line comprises a pair of signal lines to which digital data signals having opposite polarities are delivered for transmission of data. Each of the plurality of control units comprises a first receiver for receiving both of the digital data signals having oppositive polarities and outputting a first difference signal indicative of a difference between the digital data signals, a second receiver for receiving one of the digital data signals and outputting a second difference signal indicative of a difference between the one of the digital data signals and a predetermined reference level set thereto, and a third receiver for receiving the other of the digital data signals and outputting a third difference signal indicative of a difference between the other of the digital data signals and a predetermined reference level set thereto. Detecting of which of the pair of signal lines is faulty, is carried out based on the first difference signal output from the first receiver, the second difference signal output from the second receiver, and the third difference signal output from the third receiver.
摘要:
The first aspect of this invention relates to a peak data extracting device used in picture processing devices. The peak data extracting device comprises a DDA (data differential analysis) computing unit, an peak filter and a sorting unit. The computing unit gives Hough curves (sine curves) based on points to be processed on an original picture. The peak filter extracts peak data. The sorting unit sorts the peak data extracted with the noise components removed.The second aspect of this invention relates to a rotary motion recurrence formula computing device which are used in the DDA computing unit. The device computes the rotary motion formulax.sub.i+1 =f.sub.x (x.sub.i, y.sub.i, .epsilon.)y.sub.i+1 =f.sub.y (x.sub.i, y.sub.i, .epsilon.).