Abstract:
PURPOSE:To improve the S/N of a reproduced chrominance signal of a peripheral track by increasing/decreasing a recording current level of an FM chrominance signal in response to the center radius of a recording track on a magnetic disk. CONSTITUTION:A control data table corresponding to each track of a magnetic sheet disk D is stored in a ROM 2, position data of a magnetic head 2 is supplied from a system control circuit 5 and gain control data of a gain control amplifier 18C is read from a ROM 21. The gain control data is converted into an analog gain control signal by a D/A converter 22 and the gain of the amplifier 18C is controlled at each track. Thus, the recording current level of the FM chrominance signal CFM flowing to a head 2 is increased by nearly 2.5dB at the peripheral track based on the current level of the innermost circumferential track to suppress the relative spurious level to a prescribed value or below.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a heat transport device capable of improving airtightness inside the heat transport device, the heat transport device, and an electronic apparatus mounted with this. SOLUTION: An area surrounding an injection opening 1a of a casing 12 is crushed (caulked) by a caulking pin 20 having a circular blade 21, which means, the injection opening 1a is surrounded by the blade 21, and the caulking pin 20 is pushed to crush the surrounding area of the injection opening 1a. As the result, a temporary sealing groove 1b is formed, which blocks communication between an injection passage 2c and an action area 8 so as to temporarily seal the injection passage 2c. After the temporary sealing, the injection opening is crushed by another caulking pin, and the crushed part is welded by a laser to seal the injection opening. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a data reproducing apparatus and a data recorder which can be utilized as peripheral devices of a personal computer (PC). SOLUTION: A disk control part 10 is provided for controlling a disk mechanism part 1 through a recording and reproducing part 5, and the disk control part 10 has: a PC interface part 29 which adjusts delivery of data to/from a peripheral part of the PC; an AV signal input/output connection part 31 which connects an input/output of an AV signal to an external camera 51 and the like; and a PC-AV signal change-over part 27 which selects these PC interface part 29 and AV signal input/output connection part 31, and delivers the data to a buffer control part 26 and an edition control part. When a host PC is connected to a connector, the PC interface part 29 detects this and operates to change over the PC-AV signal change-over part 27 to the PC side. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a disk drive assembly which can suppress the damage of a disk by impact and is improved in impact resistance. SOLUTION: The disk drive assembly has a regulating member 83 which is arranged abuttably on an elastic supporting member 11 bending in a direction of isolating a head slider 15 and the recording surface of a magnetic disk 5 and regulates the bending quantity of the elastic supporting member 11, an impact buffer member 82 which is disposed in at least part of the opposite surface of the regulating member 83 facing the elastic supporting member 11 and is deformed by collision against the elastic supporting member 11 to absorb the kinetic energy possessed by the elastic supporting member 11. The impact buffer member 82 has tacky adhesive power on its surface and sticks to part of the elastic supporting member 11 colliding against its surface. Its sticking part 82b is deformed together with the movement of the elastic supporting member 11 and the sticking state is released before contact of the head slider 15 and the recording surface of the magnetic disk 5.
Abstract:
PROBLEM TO BE SOLVED: To secure the sufficient recording capacity and reliability of the recording and reproducing operations, to reduce the production cost and to attain the easy replacement of disk-like recording media. SOLUTION: The disk drive is provided with a mechanism block 6 having a magnetic disk 5, a spindle motor 24 which supports fixedly the disk 5 to revolve it, a magnetic head 12 which records and reproduces the information in and from the disk 5 and having a head moving mechanism 11 which moves the head 12 over the recording area of the disk 5. The disk drive is, moreover, provided with a circuit block 7 having a circuit board 33 to perform the drive control and signal processing of the block 6 and having a circuit block 7 which has a power connector 32 to which the electric power is supplied and with a connecting terminal part 27 and a connector part 31 which are provided in both blocks 6 and 7 respectively to electrically connect these blocks together. The blocks 6 and 7 can be attached to and removed from each other through the parts 27 and 31.
Abstract:
PROBLEM TO BE SOLVED: To provide the video of the content of answering the request of a viewing form different for each viewer while suppressing a program producing cost. SOLUTION: The side of a transmitter 1 hierarchical video information of a program by units of the scene group and the scene and sets an index picture and a digest picture to form structured video information to broadcast the program. As the side of a receiver 100 reads information from video information accumulated in an accumulator 102 according to the user's favor of a viewing form by the unit of structured video information and displays an edited program prepared like this on a display 105, video of a content satisfying the user's request for a viewing form is viewed.
Abstract:
PROBLEM TO BE SOLVED: To provide a TV broadcast program corresponding to each viewer. SOLUTION: A plurality of signals D131-D135 for viewers of separate areas are encoded at a low rate and multiplexed on a TV broadcast signal so that the bit rate is a prescribed value at all times and the resulting signals are transmitted as signals corresponding to a commercial of a prescribed TV broadcast program. Then a TV receiver receiving the TV broadcast signal on which the signals are multiplexed extracts any signal (any of the signals D131-D135) corresponding to an area in which a viewer is resident automatically and provides an output of a corresponding commercial video and audio signal.
Abstract:
PROBLEM TO BE SOLVED: To record an information signal such as a television video signal so as to be able to understand its contents to some degree by utilizing efficiently a recording medium of a large capacity. SOLUTION: When the level of a video signal forming a television signal being an information signal and an acoustic signal are detected and the level of these both signals in a prescribed level or higher, the television signal is recorded in a recording medium such as a hard disk. When either one of both signals is the prescribed level or higher, it can be performed that only a video signal is recorded or only an acoustic signal is recorded. Both signal are a prescribed level or lower, since recording in a standby state is not performed, efficient utilization of a recording medium can be achieved.
Abstract:
PURPOSE:To obtain a disc cartridge with which the reference positions of cartridge positioning holes are clarified and the classification of the finishing work of a die, etc., can be done easily and, further, which gives allowances to the outer diameters of positioning pins. CONSTITUTION:A recording disc 1 is housed in a cartridge main part 4 composed of a pair of an upper half 2 and a lower half 3 so as to rotate freely. Annular trenches 17 and 18 are formed around cartridge positioning holes 14 and 15 provided on the cartridge main part 4.
Abstract:
PURPOSE:To keep the strength of transfer bias field at a set level regardless of the change of the characteristics of head due to the aging or temperature variation, fluctuation in the assembling accuracy, or the like. CONSTITUTION:A coil 203b in a transfer bias field head 203 is fed with an AC current, corresponding to an oscillation signal from an oscillator 205, from an amplifier 204 to generate a transfer bias field between the poles 206a, 206b of the core 203a. A mother tape MT and a copy tape CT are disposed, while touching each other, between the poles 206a, 206b and a transfer bias field is applied between the tapes MT, CT. A magnetic flux detection coil 207 is wound around the core 203a in the vicinity of the pole 206b and an electromotive force induced in the coil 207 is passed through a smoothing/rectifying circuit 208 to produce a strength detection signal VBM. An OP-amp 209 produces a difference signal between the strength detection signal VBM and a reference voltage VREF. The gain of the amplifier 204 is then controlled by the difference signal, and the strength of transfer bias field is equalized to a set value through feedback control.