摘要:
An optical pickup emits a light beam onto a recording medium and outputs, in response to a reflection from the medium, a first and a second signal for controlling focusing servo control and tracking servo control, respectively. A signal generating section generates a focus error signal and a tracking error signal in response to the first and second signals, respectively. A driving section is responsive to the output of the signal generating section for outputting a first and a second drive current assigned to focusing and tracking, respectively. An actuator moves the pickup in a focusing direction and a tracking direction by the first and second drive currents, respectively. An adjusting section detects two values close to the maximum and minimum values of the tracking error signal at the start of the focusing servo control and adjusts the gain of the second signal on the basis of a difference between the detected values. Alternatively, the offset of the second signal may be adjusted by the sum of the two detected values. Further, the offset of the first signal may be adjusted by a focus offset occurring when the amplitude of the first and second signals appearing after the start of the focusing servo control or the amplitude of a third signal also outputted by the pickup and representative of recorded data and appearing after the start of tracking servo is close to the maximum.
摘要:
A sound system for a vehicle detects the amount of noise, such as road noise, and automatically controls the audio volume in accordance with the noise amount. There are provided a plurality of tables, in which the relationships among the present volume, the noise amount and the volume increase amount of the audio signal are stored. Once one of the plurality of tables is selected by using a table selection key according to the type of the vehicle or the sound system, the volume is automatically controlled based on the characteristic of the selected table.
摘要:
A toroidal coil motor characterized by the provision of an annular iron core in which laminate-fixing holes whose number is the least common multiple with respect to the number of magnetic poles and the number of toroidal coils are provided symmetrically in a direction of the circumference of the annular iron core.
摘要:
An electric motor includes at least a stator core carrying toroidal coils wound thereon, a magnet provided in opposition to the stator core so as to constitute a part of a rotor, and magnetic flux detection elements for detecting changes in magnetic polarity of the magnet so as to control a current flowing in the toroidal coils. The stator is provided with a select number of cut portions at its open end. The number of cut portions is not less than that of the magnetic flux detection elements. The winding positions of the toroidal coils are considered in order to maintain magnetic symmetry, the magnetic flux detection elements being provided in the cut portions.
摘要:
A looped data transmission system has a pair of looped transmission lines forming two transmission systems having different transmission directions, and a plurality of stations including at least one control station connected to said transmission lines of the two transmission systems. If a fault occurs in the two transmission lines of the two transmission systems in the same section, a loopback configuration is established such that stations adjacent to the faulty section send signals from one system back to the other system. With the loopback configuration being established, the stations which have received supervisory signals sent from a loopback end station send them back to the transmission line of the other system. When one of the loopback end stations has received a supervisory signal from the direction of the faulty section, it is judged that a portion of the faulty section is recovered, and the result of the judgement is communicated to the control station.
摘要:
A method for producing a seasoning from whey is disclosed wherein lactic acid bacteria are inoculated into whey and cultured at a temperature of 30.degree.-50.degree. C. while adjusting the pH to from 6-7. The fermented solution is centrifuged to produce a precipitate phase which contains proteins and a supernatant phase which contains alkali salts of lactic acid. The proteins are decomposed with a mineral acid or a proteolytic enzyme to produce a Seasoning Liquid A. The supernatant phase is neutralized and concentrated to produce a Seasoning Liquid B, and admixed with Seasoning Liquid A.
摘要:
A fluorescent display device which is capable of eliminating a soldering failure such as a tunnel solder phenomenon is disclosed. The fluorescent display device includes electrode wires each having an external lead portion which has a convex polygonal shape in section to allow a chromium oxide layer to be readily removed by a mechanical method, to thereby effectively carry out the mounting a fluorescent display device on a substrate by soldering.
摘要:
A loop type data transmission system based on a token pass principle, wherein a station whose transmission of data is completed passes therethrough a token to the stations located downstream. The station demanding the transmission acquires the right of transmission when received the token, to perform data transmission with a given station. The token signal is classified into a free token representative of the freedom of the line and a busy token representative of occupation of the line. Among a plurality of stations, only one station is destined to execute detection of transmission failure and remedy thereof. This one station is adapted to convert the free token detected upon reconstitution and repeating of the received information into the busy signal and subsequently re-send the free token. The station having sent out the free token after the completed data transmission is transferred to the state for reconstituting and repeating the received information when the busy token returns to that station.
摘要:
According to one embodiment, a memory includes a memory cell array including blocks arranged in a column direction, first and second main global conductive lines each extending from a first end to a second end of the memory cell array in the column direction, a first resistance change element connected between the first and second main global conductive lines inside the memory cell array, a first reference global conductive line extending from the first end to the second end of the memory cell array in the column direction, and a second resistance change element connected to the reference global conductive line outside the memory cell array.
摘要:
A touchscreen panel sensor film, with alignment marks or product information assigned thereto is formed so as to improve post-processing accuracy. The touchscreen panel sensor film includes a transparent base film and a transparent electrical conductor pattern provided on at least one surface of the base film, and achieves the improvement of post-processing accuracy by having alignment marks or product information in a non-active area on the sensor film.