Abstract: A microcellular communication system which broadcasts its local channel block, comprising the control channels allotted from a total channel block to the microcellular system, on all control channels being used by the said system. A mobile unit seeking access to the microcellular system initially searches the total channel block in an effort to receive the local channel block information broadcast by the microcellular system. The mobile unit compares received local channel block information with stored total channel block information and replaces its memory content with the newly received information. Periodic searching of stored channel block information is conducted to verify that the mobile unit has the relevant channel block information for the local microcellular system.

Abstract: A noise suppression apparatus and method for recorded luminance signals in which a level of an FM signal from the recording medium is detected, and the level of the recovered chroma signal is detected, the luminance signal is bandpass filtered and limited. A subtraction signal is generated based on the filtered and limited luminance signal and having magnitude based on the detected level of at least one of the chroma signal and the FM signal. The subtraction signal is subtracted from the luminance signal to generate a noise suppressed luminance signal. The passband of the bandpass filter may be varied based on at least one of the chroma signal and the FM signal.

Abstract: In case the number of usable channels is insufficient when a data communication system transmits information by using a plurality of channels, an information transmission rate reduction detector circuit included in a terminal interface circuit requests a terminal to reduce an information transmission rate and thereby reduce the probability of call blockage of the terminal. Also, in case the number of usable channels is insufficient at the time of hand over, hand over failure of the data communication system is reduced by lowering the information transmission rate of the terminal.

Abstract: A lithium secondary battery comprising a positive electrode a double oxide of lithium and nickel wherein said double oxide is formed by burning a mixture of a nickel compound such as nickel carbonate, and a lithium compound such as lithium nitrate, at an atomic ratio of Li/Ni of from >1.0 to 1.4, in either air or oxygen, and a method of manufacturing the same.

Abstract: The invention provides a communication network system which permits parallel access of a plurality of nodes to a transmission line and which has a high throughput and low delay, with fairness among the nodes maintained. In the communication network system, a plurality of tokens correspondingly associated with the nodes, respectively, are allowed to circulate on the transmission line. Each node is allowed to transmit data only when the frame insertion buffer is empty. The node, when having data to be transmitted, awaits the arrival of a token. If a token that has arrived corresponds to the self node, or if a node corresponding to the arrived token is downstream of the destination node as viewed from the own self node, the node forms a packet from its holding data and transmits it onto the transmission line.

Abstract: A remote-control signal receiver includes an input apparatus to input remote-control signals consisting of data trains repeated at a predetermined frequency, a data incorporating apparatus by which the remote control data derived from the remote-control signal is incorporated into a micro-computer by using the input apparatus, a setting apparatus by which the blank period between the data trains of the remote-control signal incorporated by using the input apparatus is set, and a limiting apparatus to limit the data incorporation period.

Abstract: Bit lines BL0 and /BL0 are connected to a sense amplifier SA0, the gate of a first MOS transistor to a first word line WL0, a first electrode of a first ferrodielectric capacitor Cs1 to the source of the first Qn, the drain of the first Qn to BL0, a second electrode of Cs1 to a first plate electrode CP0, the gate of a second MOS transistor Qn to a second word line DWL0, a first electrode of a second ferrodielectric capacitor Cd2 to the source of the second Qn, the drain of the second Qn to /BL0, and a second electrode of Cd1 to a second plate electrode DCP0, and after turning off the second Qn, the logic voltage of DCP0 is inverted. Hence, in a semiconductor memory device employing the ferrodielectric element, the dummy memory capacitor is initialized securely, and high speed reading is enabled without concentration of power consumption.

Abstract: A magnetic material is provided which includes a discrete phase including grains made of a first substance which comprises a magnetic metal; and a continuous phase including a thin coating film made of a second substance which comprises a dielectric or insulating substance. The thin coating film is formed on the surface of the grains and has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film.

Abstract: In an optical recording disk having groove-like guide tracks, a rotation index mark is provided to indicate a rotation starting point where the rotation index mark is constructed of a grooved-like phase structure. The rotation index mark may be formed in a track which is located separated from the information recording tracks, and may be detected optically without using a laser light beam. The rotation index mark is used to control the rotation of the disk as well as writing and reading operation of an optical disk recording/reproducing apparatus so that various information, such as video signals, can be accurately recorded and reproduced. In the case of recording digital signals, the guide tracks may be divided into a plurality of sector regions, and sector index marks corresponding to respective sector regions may also be formed together with the rotation index mark. Furthermore, an address index mark indicative of the position of track address region radially formed in the guide tracks may also be added.

Abstract: A printing apparatus is disclosed. A toner image is formed on an image carrier. A solvent supply device supplies a solvent to the toner image in a direction toward such a side that the toner image makes contact with an image bearing medium, the solvent lowering the viscosity of the powder image. A transfer device presses the image bearing medium against the toner image of which viscosity is lowered by the solvent, thereby transferring the toner image to the image bearing medium.

Abstract: Three dimensional solid geometry in an analysis domain is divided into primitives which are three dimensional solid geometry elements such as a parallelepiped, column or globe, and each primitive is divided into scanning lines having a predetermined thickness and being perpendicular to a reference plane of the analysis domain, then run-length which is represented by intersection of the scanning line and the primitive is calculated; the analysis domain is divided into cells, and a volume of the solid geometry which is occupied in each cell is calculated by intergration of the data of the run-lengths in the cell; moreover, a surface area of solid geometry is calculated by integration of intersection domains of the surface of the cell and the run-length, and finally a volume occupation ratio which is a ratio of the volume of the solid geometry and the volume of the cell is calculated, and in a similar manner an area occupation ratio which is a ratio of the surface area of the solid geometry and the surface area

Abstract: A charge transfer device comprising a semiconductor body including a first conductivity type region and a second conductivity region which defines a charge transfer channel below a major surface of the semiconductor body. An insulative layer is provided on the major surface. A plurality of electrodes is attached to the insulative layer to produce potential wells in response to application of different potentials thereto with respect to a common electrode attached to the opposite surface of the semiconductor body. The n-type conductivity charge transfer channel includes a center section of lower impurity concentration and a peripheral section of higher impurity concentration which substantially eliminates the undesirable lateral field effect which would otherwise occur in an area adjacent to the boundary with the first conductivity region.

Abstract: An electrochromic display device comprises a pair of first and second, opposed insulative substrates, a layer of electrochromic substance sandwiched between the substrates, a transparent display electrode on the first substrate, and a counter electrode on the second substrate. A dielectric layer analogous in pattern to the display electrode is formed on the counter electrode to improve the device's life time and eliminate interference between adjacent display electrodes.

Abstract: In a magnetic head of perpendicular magnetization type having main and sub magnetic poles arranged at both sides of a recording medium, a nonmagnetic supporter holding a high permeability magnetic thin layer of the main magnetic pole is formed by a polycrystalline sintered body substantially composed of titanium carbide and alumina. This polycrystalline sintered product well matches with a recording medium having a cobalt-chromium alloy layer so that the recording medium does not wear for a long time of use, and therefore, so that the contact surface of the main magnetic pole is hardly damaged. The same sintered body may also be used for the sub magnetic pole arranged to be in contact with the recording medium. Some structural improvements are also provided so that undesirable influence due to an adhesive layer adjacent to the magnetic thin layer is removed. One or more additional thin layers may be provided for reducing crosstalk between adjacent tracks.

Abstract: A light beam emitted from a semiconductor laser passes through optical elements which include a condenser lens, a magnifier prism, and a focussing lens to obtain a substantially circular spot of light on a disc. The magnifier prism is constructed such that only the narrower cross-section of the elliptical light beam emitted from the condenser lens is magnified by the incidence surface of the magnifier prism to obtain a substantially circular light beam. The light beam thus obtained is reflected by the prism so that it becomes substantially perpendicular to the beam emitted from the condenser lens. After reflection by the disc, the light passes through a splitter prism. The splitter prism has a reflecting surface and a transmitting surface which spatially bisect the light beam reflected from the disc, a lens and other components. The bisected portions of the beam fall on a photodetector for focussing control and a photodetector for tracking control.

Abstract: A solid-state photoelectrical transducer comprises a plurality of multilayered semiconductive structures. Each of the multilayered structures comprises a charge transfer layer, a photoelectrical conversion layer having an array of photoelectrical conversion regions, and an intermediate layer sandwiched between the charge transfer layer and the photoelectrical conversion layer. The intermediate layer is of opposite conductivity type to the conductivity type of the other layers and includes a pair of electrically resistive regions adapted for connection to a potential source for inducing in the intermediate layer a pair of field potential distributions having oppositely inclined gradients to cause depletion of charges to occur between the charge transfer layer and each one of the photoelectrical conversion regions.

Abstract: A billet made of a polycrystalline Mn-Al-C alloy magnet which is obtained by plastically deforming a Mn-Al-C alloy for magnet such as by extrusion at a temperature of 530.degree. to 830.degree. C. is used for compressive working. When the billet is hollow, it is entirely or locally compressed along the axis of the hollow billet. On the other hand, when the billet is solid, an outer circumferential portion of the billet is compressed. By the compression, the anisotropic structure of the portion where compressed is changed into an anisotropic structure having a direction of easy magnetization in radial directions. The magnet obtained by the method is also disclosed. The magnet has a radially anisotropic structure or novel structures having two different types of anisotropies therein.

Abstract: Anisotropic Mn-Al-C alloy magnets exhibiting excellent magnetic characteristics in multipolar magnetization are described. The magnets are obtained by subjecting a polycrystalline Mn-Al-C alloy magnet, which is rendered anisotropic, to compressive working or extrusion at a temperature of from 530.degree. to 830.degree. C. while keeping restrained at least part of the hollow billet along its length so that the at least part is prevented from suffering compressive deformation until fed into a compressive working region. Permanent magnets obtained by the method are also described.

Abstract: An ultrasonic liquid ejecting apparatus for discharging liquid droplets comprises a housing including a chamber for holding liquid therein having an intake port connected to a liquid supply container. A bimorph vibrator system is provided comprising a vibrating member secured to the housing in pressure transmitting relation with the liquid in the chamber and a piezoelectric transducer secured to the vibrating member for inducing a displacement therein to discharge a small quantity of liquid through an nozzle opening formed in the vibrating member. A circuit is provided for exciting the transducer at a frequency corresponding to the resonant frequency of the vibrator system.

Abstract: In an analog-to-digital (A/D) converter or a digital-to-analog (D/A) converter, a nonlinear D/A converter is employed. The nonlinear D/A converter comprises an absolute value circuit, a D/A converter, and another D/A converter having a function of multiplication. The latter D/A converter is responsive to a digital signal and to an analog signal from the former D/A converter so as to produce an analog signal indicative of the square of the digital signal. In an A/D converter, the nonlinear D/A converter is put in a negative feedback loop following an output of a successive approximation register so as to produce a reference signal with which an input analog signal to be converted will be compared by a comparator. The invention enables A/D conversion of a wide dynamic range signal by using a small number of bits, while quantization noise with respect to a low level signal is maintained low.