摘要:
A CD-ROM is provided with an area for forming a character/graphic pattern. The character/graphic pattern is formed in such a way that data, which generate on the CD-ROM two sorts of pit patterns having average reflectances different from each other to a perceptible extent, are respectively recorded inside and outside the character/graphic pattern. Unless an illegal copy disc is produced by duplicating the legal original disc of the CD-ROM at a very high precision, the character/graphic pattern of the copy disc is invisibly deformed by the discrepancy between the arrangements of the pit patterns of the copy disc and the original disc.
摘要:
A television signal receiving apparatus which can read program information relevant to a television program from an optical disk medium, interlocked with the television program and can reproduce and display the read program information. Program information (broadcasting information including program names, broadcasting channel names and broadcasting dates and times and appendant information relevant to the contents of the programs) relevant to the television programs to be displayed by the television receiver/display is recorded in the optical disk medium. When a user instructs a display of the program information by the selection and decision input unit, the television control unit transmits the display request and time information from the clock apparatus to the control unit of the optical disk unit. The control unit makes the appendant information to be reproduced from the optical disk medium, by using the broadcasting channel name and the time information as retrieval information. The appendant information is sent to the television receiver/display through the interface and is displayed in a picture and sound.
摘要:
In a wire bonding apparatus used in manufacturing, for instance, semiconductor devices, a cover is attached to a detection image intake section of the camera mirror tube of a camera which detects the bonding points of a semiconductor workpiece, and the cover covers an area where a variation in air density occurs between the detection image intake section of the camera mirror tube and the semiconductor workpiece.
摘要:
Digitally-compressed audio and image data of a plurality of programs (logical channels) are distributed and superimposed for every horizontal synchronizing signal period together with identification information of each of the programs in place of a luminance signal of an analog video signal of each of physical channels. Each of the physical channels is superimposed in its frequency and distributed from a signal transmission facility of a broadcasting station. At the receiving side, a desired physical analog channel is tuned and the compressed digital audio and image data superimposed on the tuned video signal are selected and taken as desired logical channel data in reference to program identification information, and the compressed digital audio and image data are decoded to obtain their original audio and moving images. With such an arrangement as above, in an existing CATV system, a mere insertion of an encoder unit into a transmission side and a decoder unit into a receiving side, without improving a characteristic of an analog video signal distribution system such as a cable or the like, respectively, enables a greater number of programs to be supplied correspondingly by the amount of digital compression.
摘要:
An interactive program selecting system uses a plurality of channels (broadcasting signals) including a channel dedicated to a menu and has a tuner for receiving a broadcasting signal, a menu screen information extractor for extracting menu screen information, a display data memory for storing display data of menu screen information, a control data memory for storing control data such as a menu screen information number and moving information, a decoder for converting digital data into display data, a display unit, an RC (remote controller) for designating a menu selecting operation by a user, an RC receiver for receiving an RC signal, and a menu selection executing controller responsive to a operation command by the user to control the tuner and the menu screen information extractor.
摘要:
A holding device of a frame retainer on a retainer holder used in bonding machines for manufacture of semiconductor devices including a pair retainer guides formed in the retainer holder so that the frame retainer is positionally secured between the retainer guides by positioning pins which are pushed and moved by spring members. The positioning pins are movable toward and away from the frame holder by turning (overcoming the spring force of the spring members) eccentric pins which are in contact with the positioning pins.
摘要:
A non-contact IC card communication in which power consumption of a driver of a reader/writer is reduced and the size of a power supply circuit for operating the driver is made small. The driver has a low output impedance. A current detecting circuit including a detecting coil magnetically coupled with a transceiver coil of the reader/writer through a magnetic coiling element and a resistor detects a current which flows through the transceiver coil. A voltage drop to be detected is small and is approximately constant for a variation of the transceiver coil current. When data is read from an IC card, a load of the driver is changed. The driver drives the transceiver coil in a constant voltage fashion even if a current flowing through the transceiver coil changes due to the change in load. Input voltages of a rectifying/smoothing circuit and a regulator in the IC card become approximately constant. As a result, the amplitude of a high frequency output voltage of the driver can be made small. Also, a high frequency signal current sent from a reader/writer is subjected to double modulation including amplitude modulation by card data and modulation by second information, such as information indicative of the abnormality of an IC card, in synchronism with a timing at which data transmission between the reader/writer and the card is made, and the second information is extracted by the reader/writer.
摘要:
An information recording disc having at least two bands of information provided thereon. Each of the bands contain at least one track with one of the at least two bands being a read-only area band or a write area band along the one track of the one band. Another of the at least two bands is a mixed area band having at least one read-only area and at least one write area at different portions along the track of the mixed area band. An information system utilizes the disc for writing and reading information to and from the disc.
摘要:
A frame-type sprinkler head for dispensing fire extinguishing liquid. The sprinkler head includes a frame having a conducting hole therein through which fire extinguishing liquid may flow. The sprinkler head includes a valve body disposed adjacent to the conducting hole for blocking the conducting hole. The sprinkler head including a packing affixed to the valve body to prevent separation of the packing and the valve body. The packing is disposed between the conducting hole and the valve body for preventing leakage of the extinguishing liquid past the valve body. The sprinkler head includes a band-like protrusion extending from an edge of the packing. The band-like protrusion is engaged with an engagement portion provided on the frame for causing pivoting movement of said valve body and for preventing lodgement.
摘要:
A clamping device for bonding machines used in manufacturing semiconductors including a clamp receiver, a rotatable lock key movable in a vertical direction on the clamp receiver, an air cylinder which pulls up and down the lock key, and a clamp which has a bonding window for bonding tool and an opening for the lock key passing through it. The clamp is mounted on the clamp receiver by letting the lock key pass through the opening, and then the lock key is turned so as not to accord with the opening. When the air cylinder is actuated, the lock key is pulled down and presses the clamp against the clamp receiver, securely positioning the clamp on the clamp receiver. Thus, the changing operation of the clamp is easily and quickly performed because the clamp can be removed by merely rotating the lock key and turning on and off the air cylinder.