Abstract: An electronic combination lock is provided with and incorporates the enhanced feature of covert entry detection and notification. Whenever the bolt of an electronic lock provided with this enhancement is retracted to its withdrawn or unlocked position and whenever the lock has not received an authorized combination enabling the movement of the bolt, movement of the bolt is detected and the electronics of the lock is powered for a time sufficient to record an indication of the covert entry in its non-volatile memory. Upon normal operation at a subsequent time, the indication of covert entry is read from the non-volatile memory and a visual indication is displayed to the operator to inform the operator that covert entry has occurred.

Abstract: A system for locating any mobile body of a plurality thereof within a predetermined environment, wherein each mobile body carries a transmitter (10 to 18), each transmitter producing a unique identifying signal, and a plurality of receivers (20 to 32) located in a corresponding plurality of defined regions in the environment, each receiver incorporating a FIFO buffer memory (28) into which carrier identifying data is inserted and a controller for interrogating the receiver means in turn to link the identification data with location data. (FIG. 1 ). A carrier authentication system is also described.

Abstract: An access control system for controlling access of individuals to an area having at least one programmed data carrier. Each programmed data carrier is assigned to an individual and has a programmed memory including a predetermined number of active bits within a bit allocation map defining authorization data specific to the individual. The programmable memory also has control data including an entry representative of the predetermined number. A stationary reading device is installed adjacent to the area for receiving the control and authorization data from the data carrier. The stationary reading device has uninitialized and unprogrammed programmable reader memory. A central evaluation unit includes check data and is coupled to the stationary reading device. The control data programs the reader memory so that the reading device recognizes the predetermined number and relays authorization data unaltered to the central evaluating unit.

Abstract: Apparatus and method for switching between two input sources to a television receiver and/or video recording device. Switching may be carried out with a conventional remote control otherwise dedicated to the video recorder or television receiver by holding down a control button thereof for at least a predetermined interval of time, for example two seconds. Five RF diode switches along with solid state logic components are employed to respond to the remotely developed switching signals for carrying out TV receiver and VCR source selections by the viewer. The pre-existing television or VCR operational status is not affected by the remote controllers where an ongoing channel selection simply is reinforced or a function of the remote controller is elected which has no undesired effect upon that ongoing operational status.

Abstract: A photomultiplier which can be easily made compact has a dynode unit having a plurality of dynode plates stacked in an electron incident direction in a vacuum container fabricated by a housing and a base member integrally formed with the housing. Each dynode plate is constituted by welding at least two plates overlapping each other. The welding positions do not overlap each other in the stacking direction of the dynode plates. With this structure, field discharge at the welding portions between the dynode plates can be prevented to reduce noise.

Abstract: A radio communication system (1600) capable of communicating on at least two radio frequencies has a receiver (202, 206) which receives information addressed to at least one of a plurality of radio receivers (106) on a first radio frequency. A transmitter (104) transmits the information having a control signal therewith to at least one of the plurality of radio receivers (106) on the first radio frequency. A generator (102) generates the control signal for temporarily directing one or more of the plurality of radio receivers to a second radio frequency to receive address and message information. The radio receiver (106) has a receiver (804) which receives information on the first frequency, the information includes the control signal for temporarily directing the radio receiver (106) to the second radio frequency.

Abstract: A color cathode ray tube with reduced desquamation includes a panel on which spaced-apart phosphor elements and a black matrix, filling the spaces between and contacting the phosphor elements, are disposed. A metal back covers the phosphor layer and the black matrix and is in direct contact with the black matrix and is spaced from and does not contact the phosphor elements. The direct contact with substantially all the black matrix and the complete separation from the phosphor elements improves the adhesion of the metal back while increasing luminance and reducing desquamation of the metal back.

Abstract: An electro-luminescence device is described, which includes a laminate composed of a transparent substrate having successively laminated thereon a transparent electrode, a luminous layer, a dielectric layer, and a back electrode, with a back protective material being adhered to the back electrode through an adhesive resin film, wherein the back protective material is a moisture impermeable protective material and the adhesive resin film is a thermo-plastic resin film having a thickness of from 10 to 200 .mu.m, and a method for production thereof is also described.

Abstract: A method and apparatus for optimizing utilization of a memory which stores messages received in a portable communication device "40". The memory full threshold for the memory "200" is adjustable. The amount of space available in the memory "200" is determined and is compared with the memory full threshold. If the amount of space available in the memory is less than the memory full threshold, an indication is made to the user, who can opt to delete a message in order to make room in the memory. When a new message is received, if the amount of space available in the memory is less than the size of the new message, a previously stored message is deleted in order to make space for the newly received message in the memory.

Abstract: An inline electron gun for use in a multi-beam color cathode ray tube (CRT) has a main focus lens for focusing the electron beams on a display screen of the CRT. The main focus lens includes adjacent charged electrodes each having a respective common lens aperture through which the electron beams are directed and which are in facing relation for reducing horizontal spherical aberration of the electron beams on the display screen, where each common lens aperture has a longitudinal axis aligned with the inline electron beams. In one embodiment, each common lens aperture is chain-link-shaped including spaced, vertically enlarged portions, each aligned with a respective electron beam for correcting for vertical spherical aberration. Each adjacent electrode further includes a plurality of auxiliary apertures, each aligned with and passing a respective electron beam.

Abstract: A video camera has a memory for storing the position of an image lens in relation to the position of a variator lens, that is, zoom tracing curves in respect of individual subject distances, a motor for moving the image lens while vibrating it slightly during zooming operation, a variation component extractor circuit for extracting the amplitude and phase of a slight variation component of focusing voltage generated by moving the image lens while vibrating it slightly, and a controller for controlling drive means on the basis of the stored zoom tracing curves and an extracted slight variation component. During zooming operation, the controller first controls the motor in compliance with a position of the variator lens pursuant to a zoom tracing curve stored in the memory in association with a position assumed by the image lens immediately before start of the zooming operation.

Abstract: Disclosed is a color cathode ray tube equipped with a main electronic lens section for focusing a plurality of in-line electron beams on a screen section. The main electronic lens section includes a plurality of grids each having electron-beam through holes and securely supported by a plurality of insulating supports. At least one of the grids has a rectangular cup portion with a substantially rectangular cross section for commonly enclosing the plurality of in-line electron beams and a face having electron-beam through holes formed at least at one end and substantially perpendicular to the rectangular cup portion. The ratio of an outside diameter L.sub.H of the substantially rectangular portion in a long-axial direction to an outside length L.sub.S thereof in a short-axial direction, L.sub.H /L.sub.S, is set to 2.5<L.sub.H /L.sub.S <4.4, and the ratio of the outside length L.sub.S to a diameter D.sub.V of the electron-beam through holes in the same short-axial direction, L.sub.S /D.sub.V, is set to 1.

Abstract: An active matrix electroluminescent display having an array of pixel electrodes disposed on a transparent substrate. Each pixel electrode having an associated electronic circuit formed intermediate the pixel electrode and the transparent substrate to which it is electrically connected. The array of pixel electrodes are overlayed with an electroluminescent stack and a transparent ITO conductive layer. The surface of each pixel electrode is uniformly texturized to enhance the brightness of the pixel element when it is activated to its luminous state by its associated electronic circuit.

Abstract: An apparatus for detecting a focus adjustment state of an objective lens includes a photoelectric converter, which has a photosensor array, for receiving a light beam transmitted through the objective lens. An area defining device defines different areas of a pupil of the objective lens, and is arranged so that light beams passing through the areas overlap each other on the photoelectric converter when the objective lens is at an in-focus state. A calculator calculates an autocorrelation from an output signal from the photoelectric converter.

Abstract: A paging receiver capable of writing a paging code in an ID ROM according to a received signal. When no data is present in the ID ROM, an ID ROM checking section generates a no-data signal. A mode set code detecting section generates a detection signal when received a predetermined mode set code. A switch is turned on and off by the user of the paging receiver. The receiver allows data to be written to the ID according to a received data on condition that the switch is turned on with the no-data signal and detection signal being generated.

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: A synchrotron radiation light-source apparatus is provided in which the characteristics of synchrotron radiation generated by bending electromagnets can be made uniform, and emittance can be made smaller to increase brightness. The synchrotron radiation light-source apparatus for bending the traveling direction of an electron beam with bending electromagnets and for emitting synchrotron radiation includes deflecting electromagnets which cause a negative value (-dBy/dx) of a magnetic-field gradient gradually to increase after gradually decreasing in the traveling direction of the electron beam, that is, along the length of the bending electromagnets, so as to form a smooth recessing distribution, or to increase in a step-like manner after decreasing in a step-like manner.

Abstract: The remote control comprises: a microprocessor including a CPU and memory; a keypad including several keys coupled to the microprocessor for operating the remote control, some of the keys being a "POWER" key, a "Channel Up" key and a "Channel Down" key; lamp driver circuitry coupled to the microprocessor; structure and program instructions, including said microprocessor, for generating infrared (IR) signals coupled to the IR lamp driver circuitry; and code data for executing command functions for operating a home entertainment device stored in the memory. A power toggle program is stored in the memory for effecting the sending of the IR code for "STANDBY" or the IR code for the number digit "1" each time the power key is pressed. Also a channel rotation program is stored in the memory for effecting the sending of digit number signals in an ascending or descending order number digit each time the "Channel Up" key is pressed or the "Channel Down" key is pressed.

Abstract: Group message delivery in a time multiplexed paging system is accomplished by providing in normal message packets a group ring indicator. A paging device collecting a message interrogates the group ring indicator to determine availability of a pending group message. If a group message is available, the paging device can target a dedicated time slot associated with group message transmission. In this manner, a single transmission of a group message is made available to all paging devices of the paging system. In one embodiment, the group ring indicator is a single bit indicating merely availability of a pending group message, the paging device then targeting and collecting the available group message to determine whether the paging device subscribes to that particular group message service. In a second embodiment, the group ring indicator indicates not only availability of a group message, but also the type of group message available.

Abstract: Full duplex communication is attained by using only one communication channel in wireless communication between a host computer 1 and a printer 6. The communication from the host computer 1 to the printer 6 is effected by wireless, and the communication from the printer 6 to the host computer 1 which includes a small amount of information is effected through a power line 9.