Abstract: A selective paging receiver with message display has a receiver section, a number setting circuit, a paging number detector, and a display panel. The receiver section receives paging signals sent to the paging receiver, and recovers a paging number data signal and a message data signal from the paging signals. The message data signal includes both individual message data for the paging receiver, and common message data for the paging receiver in common with a preselected group of similar receivers. A number setting circuit assigns both a preselected individual paging number and a preselected common paging number to the receiver. The paging number detector searches for the individual paging number in a particular group time frame of the paging number signal. This time frame corresponds to a paging receiver group to which the paging receiver belongs. The paging number detector conducts a parallel search for the common paging number without regard for the particular group time frame.

Abstract: A position and image inputting unit in accordance with the present invention is a unit in which both the position inputting function and the image inputting function are incorporated in a packing case. The unit may be used for inputting the position data, as in a mouse in the prior art, when the user presses the packing case lightly. For inputting an image, the packing case is to be pressed harder, and the packing case is moved in the direction perpendicular to the scanning direction of the image scanner. To facilitate the motion, there is provided a guiding roller so that when the packing case is pressed hard, the case moves in a fixed direction only. Furthermore, in this state, through the operation of the image scanner, the image data is scanned and input in succession in the direction perpendicular to the direction of motion of the packing case.

Abstract: The spring core for a mattress consists of several, identically formed spring coils arranged in side by side rows with each row forming a wire piece having an upper and a lower mutually aligned end spiral in a U-shape, and having opposite legs joined together by a base webb. Adjacent coil springs are joined together at their end spirals along abutting legs by helical connecting springs. To arrange the springs at tight angles in rows and columns, a length of one leg is greater than the length of another leg and all the coil springs are oriented in the same direction, except along a edge region of the spring core.

Abstract: A holder for an electret microphone of the type having a front acoustic aperture and peripheral acoustic apertures is made of insulating material and includes a first sleeve portion of a diameter to receive the microphone snugly and a second sleeve portion of larger diameter. An internal stop limits the extent to which the microphone can be inserted such that the rear portion of the microphone projects into the second sleeve portion. Through holes in the second sleeve portion provide an acoustic passage to the peripheral acoustic apertures. The internal stop is in one embodiment formed by an apertured web. In another embodiment an internal shoulder forms the stop but in that embodiment too an apertured web is provided. A concentric small cylinder extends from the web in that case and terminates short of the shoulder. In either embodiment, a rectangular plate is molded with the sleeves and this forms the cover of a microphone enclosure.

Abstract: A directional microphone operating according to the electrostatic or electrodynamic transducer principle. The pickup effect of the microphone is determined by a single phase-shifting delay line section between the rear side of the active transducer diaphragm and at least one sound entry opening provided in the microphone housing at a distance behind the plane of the diaphragm. The microphone includes at least one acoustic element coupled to the delay line section. The delay line section is arranged with the acoustic element or elements so as to have a lower limit frequency in the range of 300 Hz.

Abstract: The pixel contents of a frame buffer scan line segment are moved from a source location to a destination location by reading fields of the source segment into a source data shift register and fields of the destination segment into a destination data shift register. The contents of the shift registers may then be rotated relative to one another to account for different starting locations within source and destination fields. The contents of the two shift registers are then simultaneously and synchronously shifted into an ALU where a replacement rule may be used to create a modified stream of pixels shifted into the emptying portion of the destination data shift register. At the conclusion of the shifting for that field the destination data shift register contains the proper pixels to be written back to the destination location in the frame buffer. Then the process is repeated for any remaining fields in the segment being moved.

Abstract: A radio frequency transmitter, amplitude modulated, having a single tuner that tunes the frequency oscillator, the isolating filter and the antenna impedance, all at the same time. The transmitter includes a tunable carrier generator for generating a carrier signal of a desired frequency, and a carrier isolator for filtering the carrier signal so as to ensure a clean, isolated carrier signal. A power amplifier is included for amplifying the signal from the carrier isolator. The power amplifier has a certain output impedance. An antenna is connected for transmitting the amplified signal from the power amplifier. The antenna also has a certain impedance. The transmitter further includes an impedance matching device connected between the antenna and the power amplifier for matching the antenna impedance and the power amplifier impedance. Finally, a single control knob is provided for simultaneously controlling the tunable carrier generator, the carrier isolator and the impedance matching device.

Abstract: A dome-shaped acoustic motor diaphragm having a core of aluminum foil in the form of a spider web configuration resulting in the dome shape, the diaphragm being in the form of an annular semi-dome outer diaphragm part and a dome-shaped cylindrical inner diaphragm part. The spider web core also enables a wide variety of diaphragm shapes to be possible. A voice coil bobbin is passed through a lower diaphragm layer and unto the underside of an upper diaphram layer via the core which more or less is the greatest height of the same core in the region of the outer diaphragm part, thereby resulting in a highly effective bonding strength between these parts. Damping is accomplished by means of a cylindrical bellows having a height representing the maximum excursion distance of the movable parts. A bobbin guide positioned within the bobbin and bonded to the inner face of the lower magnetic pole piece prevents the bobbin and voice coil in the annular air gap from contacting the pole pieces.

Abstract: A segment constituting several points of digitized waveform data from a digitizer is stored in a pixel memory which has a number of memory locations corresponding to the number of pixels in the horizontal screen width of a raster scan video screen. As each new data point is written into a sequentially higher location in the memory, the data at the memory location a selected number of memory locations lower, constituting the desired number of pixels in the waveform segment, is erased. When a full new segment of data is in the waveform memory, the contents of the memory is provided to a raster scan graphics control unit which causes a new raster scan frame to be written on the video monitor screen. Only the portion of the waveform corresponding to the segment of waveform data in the waveform memory is illuminated on the screen. New data continues to be written into the waveform memory until another full segment of waveform data is in the memory and all previous waveform data points have been erased.

Abstract: An accessory (40) for a computer mouse (18) includes a multistrand accessory conductor (42) for transmitting location signals and acceptance signals having a first coupling (44) for coupling a first end of the conductor (42) to the coupling (26) of a computer mouse assembly (19) and a second coupling (46) for coupling a second end of the conductor (42) to a coupling (22) of a computer (10). The accessory further includes a remote acceptance switch (54) coupled to the strands of the multistrand accessory conductor including a hand-operated button (56) for producing an acceptance signal similar to the acceptance signal produced by an acceptance switch (38) of the computer mouse (18). Thus, a cursor location generated by movement of the computer mouse can be accepted in a memory of the computer either by activation of the mouse acceptance switch or the remote acceptance switch.

Abstract: A liquid-crystal display apparatus has liquid-crystal display panels, in which scanning and signal electrodes are arranged in a matrix, and the number of scanning electrodes in divided into 1/N. A RAM has a video data storage capacity corresponding to an (N-1)/N field of the 1/N-divided liquid-crystal display panel. An electrode drive signal for driving the scanning electrodes selects an identical scanning electrode for each 1/N field, so that video data corresponding to a 1/N image from the RAM is distributed to be displayed on divided display regions.

Abstract: A monitoring system for a serial transmission line which analyzes serial data received from a serial transmission line on the basis of a protocol or a data format for serial transmission and converts the serial data into display data, thereby monitoring the serial data. The system converts all or a portion of the data being displayed in one coding format and displays the fresh display data (for example, data displayed in HEX coding is converted and displayed in ASCII coding).

Abstract: An electrical display and method in which the least significant digit is moved or scrolled in mechanical counter fashion are disclosed. Only the least significant digit is scrolled, and the more significant digits change instantaneously when an adjacent less significant digit changes between its highest and lowest values, unlike mechanical counters. The disclosed display and method include a rounding-off feature according to which the least significant digit is rounded off when the input signal variable is unchanging and displayed in alignment with the display of the more significant digits.

Abstract: A method for identifying a bounded area of a graphic display. The method uses the division of the display screen into nine areas then the central square is the correlation window. This window can be small, two or three pel width, or large if the application is seeking to identify a larger area. The point indicated by the operator is in the center of the correlation window. An object (bounded area) which intersects this square will register a bit. It can be seen that a bounded area will intersect the correlation window if either: (a) any part of the boundary actually passes through the window, or (b) any arbitrary point within the window is inside the area.

Abstract: The device comprises at least one correction circuit interposed in the electroacoustic system and comprising a band-pass filter receiving an input signal, a compressor limiter circuit connected to the output of the band-pass filter, a threshold detector circuit connected to the output of the compressor-limiter circuit and looped thereon in order to allow compression, by said compressor limiter circuit, of the signal issued from the band-pass filter, only if the input signal exceeds a predetermined threshold, and a summing-inverter circuit to which is applied, on the one hand, the signal issued from said compressor limiter circuit, and on the other hand, via an inverter circuit, the input signal applied to the input of the band-pass filter. According to the invention, a plurality of correction circuits can be cascade-mounted, said circuits comprising band-pass filters of which the pass-bands are different but do not necessarily overlap.

Abstract: A computer-controlled password lock system having a user operated keyboard to key in and reset a password. An indicator visually displays at least one code symbol varying with time. A memory device stores a current password including at least two code symbols so that upon entry of a keyed-in password code through the keyboard, one of the stored password code symbols of the current password is replaced by the time varying code symbol and password then compared with the keyed-in password code to generate a lock opening signal when coincidence occurs. In response to non-coincidence, an alerting signal is generated to indicate the incorrect password condition.

Abstract: A display device comprises a display, an input and a controller. The display displays a three-dimensional image, a vector cursor and a pointing image extending in a direction of movement of the vector cursor. The controller generates a display signal to display the three-dimensional image, vector cursor and pointing image. The controller recognizes the three-dimensional image crossing to the pointing image in response to the pointing signal from the input.

Abstract: A touch panel input device includes a sensor for detecting that an operator's finger has approached toward a touch input key, to prevent the operator from performing an erroneous key input operation. The sensor includes a multiplicity of optical element pairs each made up of a light emitting diode for emitting a light beam and a photodetector receiving the light beam from the light emitting element. Light beams generated by the optical element pairs are arranged in the form of a matrix to form a detection plane. When the operator's finger traverses the detection plane, a cursor is displayed on the display screen at a position corresponding to the position of the finger on the detection plane. Accordingly, the operator can correct the movement of the finger toward a desired key position by observing the cursor.

Abstract: A liquid crystal display device includes a video RAM for storing character and graphic data, a control circuit for selecting specific data from the RAM to be displayed on a liquid crystal display panel, and a positive/negative mode selector for selecting one of a positive display mode in which data is displayed as lighted elements against a dark background, and a negative display mode in which data is displayed as dark elements against a lighted background. The display device allows the use of software developed for CRT based data processors to be run in LCD mounted data processors in which the data formats would otherwise be reversed.

Abstract: A touch panel assembly includes a filter plate having a recessed outer surface, first and second "L"-shaped supports each including a plurality of light-emitting or detecting elements along edges thereof with the "L"-shaped supports positioned adjacent to the inner surface of the filter plate and about the recessed outer surface whereby light from a lamp passes through the recessed outer surface to a detector element. A display is positioned in alignment with the recessed outer surface. The assembly is compact and facilitates the sealing of the display and electronics within a housing. The "L"-shaped supports for the light sources and detectors facilitate the assembly and servicing of the light elements in the assembly.