Abstract: A visual display apparatus comprises a multisegment bar display (2) having display characters (16) divided into two groups. In the first group individual outer segment bars (17) are each associated with a respective permanent marking which indicates a specific information item or class of information items, and are connected in a closed cycle whereby the instantaneously actuated display can be advanced forward or backward in the closed cycle from one segment bar (17) to another by keys (4,5). A sequence of display patterns representing parameter values is displayed in the second group of display characters (16), which sequence and which set depends on the segment bar (17) which is instantaneously actuated in the first group, and a desired parameter value can be selected from among the sequence by depressing an "acceptance" key (6).

Abstract: A movement parameter sensor for sensing of parameters of movement between a stator member defining a frame of reference and a rotor member movable relative to the stationary member about a rotation axis. The sensor includes field providing means for generating an electric field located at the stator member, the field providing means including a pole arrangement comprising an array of four source electrode means arranged adjacent to each other along a field line around the rotation axis. The field providing means includes an excitation signal generator for generating four equal frequency excitation signals at 90 degree increments of phase, each one of the four excitation signals being applied to a respective one of the four source electrode means such that a virtually moving electric field is created at the source electrode means so that the electric field effectively moves relative to the stator member along the field line.

Abstract: A paging receiver includes an improved battery saving circuit which reduces battery usage by powering the radio section and the waveform shaping circuitry only during intervals which include address codewords specific to the given receiver group. Power is not supplied during intervals containing synchronization code signals other than during the first such interval directly following the preamble code. Upon detecting a preamble code during said intervals, power is supplied continuously for a time period sufficient to encompass the synchronization code interval.

Abstract: A portable interactive electro-optic data input/output, storage, processing, and display device responsive to hand printed text and hand drawn graphics. The device preferably comprises a combined flat panel display and pen sensing surface constructed from non-mechanical, non-emissive display elements, such as liquid crystal display elements. The device also comprises an input pen for manual entry of hand printed text and hand drawn graphics, as well as commands, directly onto the display surface for providing an electronic writing and drawing slate. The display elements themselves are preferably utilized as input pen sense locations. The flat panel display and pen sensing surface is constructed so that there is no display distortion when the input pen is in contact with the surface. Rapid input pen sensing is provided for accommodating natural pen movement on a high resolution, large area display.

Abstract: Switches having a relatively high forward resistance are provided in a broadband signal switching equipment comprising a crosspoint matrix constructed in field effect transistor technology and provided with input drivers and output amplifiers. The output amplifiers respectively comprise an iterative network of a hysteresis-affected comparator and a D flip-flop, as well as a holding memory and a switch by way of which the holding memory is reloaded in a respective primary phase of a bit switching time interval. The reloading occurs at least approximately to the potential momentarily prevailing on the output line section leading away from the switch, this potential then continuing to be maintained at the second comparator input in the following switching phase.

Abstract: In order to indicate a function status which can be one of three states, upon detecting a first state, a bicolor LED is lighted with a first color; upon detecting a second state, the LED is lighted with a second color; and upon detecting a third state, the LED is alternately lighted with said first and said second colors at a sufficiently high rate to cause the color of the LED to appear as a third color.

Abstract: In a graphics display system a counter for performing either a line drawing algorithm or a bit block transfer algorithm where the counter is performing the bit block transfer algorithm includes a first counter circuit counting from a first initial state to a first predetermined value and a second counter circuit counting from a second initial state to a second predetermined value. The second counter counts in response to the first counter reacing to its predetermined value. In support of a line drawing algorithm, the counter circuit reconfigures itself to provide a first counter to count from its first initial state to the first predetermined value and a second counter to compute a parameter value and to conditionally count from a second initial value to a second predetermined value in response to the value of this parameter. These counters are connected to an addressing circuit to increment the addresses in performance of the algorithms.

Abstract: A special slanted line pattern is detected using pattern data of eight picture elements S0-S3, S5-S8 which surround a current display picture element S4. A half-picture element pattern provided on the current display picture element S4 and having a specified positional relationship to the detected pattern is added to this detected pattern, is deleted from the detected pattern, or is added to the detected pattern and given the same color as the detected pattern.

Abstract: A speaker transducer assembly is disclosed which includes first and second speaker diaphragms supported on a frame in over and under juxtaposition. Each of the speaker diaphragms has a central opening defining an inner periphery which is attached to a voice coil form for coaxial movement therewith and in unison. An intermediate baffle is coaxially positioned between the speaker diaphragms to define upper and lower, separately vented chambers. The upper chamber is vented through an outlet in the region of the outer peripheries of the first speaker diaphragm and the intermediate baffle; similarly, the lower chamber is vented through an outlet situated in the region of the outer peripheries of the second speaker diaphragm and the intermediate baffle. Preferably, the two vent systems have different vent exhaust areas to obtain stagger tuning and thus achieve a split of the deepest frequency load.

Abstract: Disclosed is a graphics display device comprising a graphics control board provided between a computer for outputting an output command of a picture image (hereinafter referred to as an image-depiction command) to be displayed on a display device such as a cathode ray tube (CRT) and said display device to process the image-depiction command from the computer by signal conversion processing and to control a display output when the display device displays a picture image, the graphics control board being divided into two boards of a signal conversion board provided within a housing case in which the computer is installed to process the image-depiction command from the computer by signal conversion processing and a display output board for controlling a supply of an output required to display the picture image by the display device on the basis of the image-depiction command.

Abstract: The invention relates to a vehicle use, wireless signal controlled locking and unlocking system. This system includes a user-carriable, userside controller and a vehicle side controller. The former controller takes the form of a card. Both these controllers are mutually communicatable by way of wireless communication and adapted for control of door-locking and unlocking operations. Switches are provided at the vehicle outside door handle and trunk, while a buzzer and a timer are provided within the vehicle interior. The buzzer is operated for a predetermined short time period, for instance 5 seconds, when the door has been brought to its locked position under such a condition that when the userside controller had been left in the vehicle with carelessness. In this case, however, the door can be opened by simple manipulation of the handle switch so far as the buzzer is kept in operation.

Abstract: A chordic keyboard including chordic data entry locations corresponding to the five fingers of the human hand and correlation apparatus for correlating a set of chordic data entry location engagement combinations to a set of letters in accordance with a code which is characterized in that available data entry location engagement combinations are arranged in a plurality of groups, the engagement combinations in each group having a predetermined relationship among their fingering patterns, each group being matched with letters forming a recognizable combination of letters, whereby the fingering patterns are readily memorizable.

Abstract: A pulse code modulation decommutator interface system includes a standard computer interface, a standard decommutator interface, control logic and memory. Control signals from the computer selectively control the data transfer from the memory to the computer. The memory can selectively be used to store information therein that is thus accessible by the computer to validate the decommutator data transferred to the computer.

Abstract: A raster-scanned interlaced cathode ray tube display is refreshed from a bit buffer (1). Cursor control logic (17) compares the refresh address (3, 4) with a desired cursor address and generates cursor defining bit patterns in synchronism with the bit pattern derived from the bit buffer (1). The cursor control logic (17) also generates overlay information (25) to control the mixing of the bit streams in mixers (11, 12, 13) to produce a 2 or 3-pel wide cross-hair cursor on the CRT screen. The cursor lines can be black, white or transparent. The overlay signal may also be used to control a further optional mixer combining the composite cursor bit-buffer bit patterns with bit patterns derived from a coded character buffer containing coded alphanumeric characters to be displayed.

Abstract: A manually operable touch pad for generating steering signals and enable signals for manipulating an image on a CRT display or for controlling the operation of plural motors whereby the image or object being driven can be positioned using appropriate hand/eye coordination. The touch pad comprises a box-like mounting base supporting a rectangular printed circuit board on which are mounted four opto-switches centered on the respective edges thereof. The printed circuit board also supports other circuit components and the necessary interconnecting conductors. Overlaying the base in covering relation with respect to the printed circuit board is a molded plastic top having a center post which depends downwardly from the underside thereof, passing through an apertrue in the printed circuit card and adaptive to be secured to the center of the base by a flexible coupling.

Abstract: A communication apparatus inserted in parallel in a two-wire communication line of a two-wire measuring instrument which consists of a transmitter and a receiver connected to each other through the two-wire communication line and transmits a process value detected by the transmitter to the receiver as an analog signal, the communication apparatus being adapted to communicate with the transmitter, comprising a switching device for separating a closed loop constituted by the transmitter and the receiver into a first loop including the transmitter and a second loop including the receiver, a power source for supplying power to the transmitter in the first loop, and dummy output means for outputtting a dummy signal to the receiver in the second loop.

Abstract: A vibrating fiber optic display unit is provided for use as an aircraft pilot display unit and for overcoming the problem of manually adjusting the display unit due to temperature changes. The display unit has a fiber optic ribbon having a plurality of fibers which form a display pattern at the free ends of the fibers during vibration of the fiber optic ribbon. The ribbon has light emitting diodes for the fibers. A microprocessor provides signals to the diodes for forming light dots in the display pattern. A piezo film transducer is mounted on the ribbon. Drive means vibrates the ribbon. An optocoupler has a shutter portion mounted on the ribbon. A ribbon oscillator network receives signals from the optocoupler and from the piezo film transducer and provides signal to the drive means, whereby the ribbon is vibrated at its natural frequency, and whereby the drive means automatically adjusts to changes in the ribbon natural frequency due to temperature change.

Abstract: An electrical transducer comprising a magnet system (1), a diaphragm (5) and a voice-coil device (3, 4), coupled to the diaphragm. The voice coil (3) is situated in an air gap (2) of the magnet system and the magnet system is coupled to a chassis (7). The chassis is provided with a connection unit (10) having at least two coupling means (11, 14) each comprising a first terminal (12 and 15 respectively) for receiving an electric signal and a second terminal (13 and 16 respectively) electrically coupled to said first terminal. Each second terminal is electrically coupled to an electrical connection (20 and 21, respectively) of the voice coil via a lead (18 and 19 respectively). The leads (18, 19) are provided with a spacer (22) made of an electrically non-conductive material, for example, a plastic material (FIG. 2a).

Abstract: In a document processing method using a multiwindow including a display device having a display screen on which a plurality of windows are established, a virtual screen memory in which a plurality of virtual screens each corresponding to programs are generated to output results of data processing by programs, a memory unit for storing therein a window control table defining corresponding relationships between the virtual screens and the windows, and a control device for referencing the window control table and for outputting contents of each virtual screen in a window associated with the virtual screen on the display screen, copy source attribute data including an identifier of a second window established in the display screen and data defining a second partial region in the second window is memorized in correspondence with a first partial region on the vertical screen so that, in response to a command inputted by an operator while painting to the first partial region displayed in the first window, the displa

Abstract: The invention is primarily directed to sensor modules for mounting directly upon energized electrical power lines to monitor parameters associated with operation thereof, wherein the modules have a more compact lateral configuration than prior art modules designed for the same purpose. The modules include a first, cylindrical housing portion containing the sensing means and other electronic data processing and transmitting elements, and a second housing portion, affixed to the exterior of the first portion and extending not more than about 150.degree. around the periphery thereof, and enclosing mechanical elements of the module mounting means.