Abstract: A digital ink generating apparatus is disclosed, which includes: a stroke data generator which, in operation, generates stroke data associated with an input sensor attribute based on pen event data generated by an input sensor when an indicator is operated, a mapping data generator which, in operation, generates mapping data indicative of a transform rule for transforming a value of the input sensor attribute included in the stroke data to a value of one of line width and transparency, and a digital ink assembler which, in operation, outputs, in a determined data format, a digital ink including the stroke data and the mapping data.

Abstract: An alternative type of vector signaling codes having increased pin-efficiency normal vector signaling codes is described. Receivers for these Permutation Modulation codes of Type II use comparators requiring at most one fixed reference voltage. The resulting systems can allow for a better immunity to ISI-noise than those using conventional multilevel signaling such as PAM-X. These codes are also particularly advantageous for storage and recovery of information in memory, as in a DRAM.

Abstract: The through metal communication system sends messages by tapping on metal barriers, such as pipelines, bulkheads, and the like. A robotic element attaches itself to a metal barrier, wall, pipe, and the like. A piezoelectric tapping device is attached to the robotic element and can tap an encoded message onto the metal. The robot preferably includes a piezoelectric actuator, a microcontroller to convert text/information to Morse code, and a power source for the actuator. The messages are retrieved and interpreted by a remote transducer connected to a computer or microcontroller.

Abstract: A cutting saw blade for use with an oscillatory power tool used in surgical bone cutting procedures including a blade having a distal end provided with teeth whose tips are located on a tangent line perpendicular to the long axis of the blade. The teeth are configured substantially as right triangles with their hypotenuses facing either towards the center of the blade or away from the center of the blade. A central tooth can be optionally provided. The surgical saw blade may have a distal end having at least one pair of teeth configured to be adjacent to each other and each of the pair of teeth is configured as a right triangle each having a hypotenuse which is oriented at least one of towards and away from the centrally positioned long axis.

Abstract: A pen that includes a marking device for marking a visible path onto a first surface. The marking device is electronically controllable to change a value of an attribute of the path such as color, line width, texture, or line spacing. A position sensing device or motion sensing device is connected to the marking device using a controller. An optical sensing device is also connected to the controller for sensing an attribute of a second surface. The controller is operable to change the value of the attribute of the path on the first surface so as to replicate the attribute of the second surface.

Abstract: A method of producing an interactive map using a computer system. The method includes determining graphic data indicative of a visible representation of a map of a geographic area and determining an identity. The computer system then generates coded data indicative of the identity and of a plurality of reference points of the map, and records an association between the identity and a page description, the page description being indicative of a layout of the coded data and the graphic data. The computer system then causes the map to be printed by printing of the graphic data and the coded data onto a surface using the layout.

Abstract: A pen has a marking device operative to mark a visible path onto a surface. The marking device is electronically controllable to change at least one of the attributes of the path. The attributes are constituted by the characteristics of the ink being deposited and can include the amount of ink deposited, the width of the line produced, and the color of the ink deposited. The pen includes a sensing device for sensing images or colors or both and a control device that effects the changing of the attribute based on the sensed images and/or colors. Additionally, the pen may include a user interface provided by one or more potentiometers or control buttons such that the user may modify the attributes.

Abstract: A cartridge for a pen has an electronically controllable marking device, such as an ink jet printhead, for marking a visible path on a surface, a non marking stylus nib that in use contacts the surface with the marking device directed toward or contacting the surface The cartridge includes an on/off switch that turns the marking device on and off. Movement of the stylus nib or application of more than a predetermined compressive force to the stylus nib turns on the on/off switch and so causes the marking device to be turned on, so marking a path on the surface.

Abstract: A pen has a marking device operative to mark a visible path onto a surface. The marking device is electronically controllable to change at least one of the attributes of the path. The attributes are constituted by the characteristics of the ink being deposited and can include the amount of ink deposited, the width of the line produced, and the color of the ink deposited. The pen also includes a user interface provided by one or more potentiometers or control buttons such that the user may modify the attributes. Additionally, the pen may include a display to indicate the selected attributes to the user and a sensing device for sensing coded data.

Abstract: The present invention provides a pen which includes a marking device, the pen being operative to mark a visible path onto a surface, the marking device being electronically controllable to change an attribute of the path, the pen including a user interface whereby a user may modify the attribute, the pen including at least one sensing device for sensing images or colors or both.

Abstract: A pen has a marking device operative to mark a visible path onto a surface. The marking device is electronically controllable to change at least one of the attributes of the path. The attributes are constituted by the characteristics of the ink being deposited and can include the amount of ink deposited, the width of the line produced, and the color of the ink deposited. The pen also includes a user interface provided by one or more potentiometers or control buttons such that the user may modify the attributes. Additionally, the pen may include a display to indicate the selected attributes to the user and a sensing device for sensing coded data.

Abstract: A train communication and control system is described having the cars of the train connected by a two-wire train line running continuously from car to car. Any car may be selected to be a master unit. The selection of one car as a master unit disconnects the power sources of all other cars from the train line, leaving the master unit power source as the sole power source for the line. The master unit communicates with each other car by causing a high voltage ("mark" state or logic one) or a low voltage ("space" state or logic zero) to be on the train line. Each non-master car can receive a communication from the master unit, or can transmit to another car by applying a low impendance across the train line to change from a "mark" state to a "space" state. The power source consists of a voltage regulator with precision constant current limit.

Abstract: It is an object of the present invention to provide a teleprinting machine capable of transmitting and writing capital and small letters, where the number of additionally transmitted shift code combinations is minimized in order to reduce the transmission time in this fashion.

Abstract: In a message communication system and process, a character string with a plurality of characters is encoded into a compact code, which is transmitted to a reception side. At the reception side, the compact code is decoded to an original character string. Thus, the amount of information to be transmitted is fairly reduced as compared with the transmission in which each character is encoded. Preferably, a combination of a word and a `space` code following the word is encoded to a single compact code. The compact code may also encode a combination of a plurality of words. Some particular control codes are defined for converting a small character to a capital character, or vice versa, and designating special code like period ".", quotation mark "?", etc.

Abstract: A portable word-processor comprising the following components; a microprocessor and, connected thereto, a manually operable input chord keyboard having four finger keys and at least one thumb key, the microprocessor being programmed to respond to signals produced by operation of a chord of a combination of up to a maximum of five keys to generate a coded signal representing a particular alpha-numeric character or processing instruction; a display device; output means for connection of the word-processor to a printer; memory means; and an internal power supply connected to power all the aforesaid components; the microprocessor being additionally programmed so as to process the character signals in response to the instruction signals, feed signals to the display device for display of processed characters as an edited text, and to the memory means to store the edited text and print format instruction signals available for transmission through the output means.

Abstract: A lighting and signaling device is provided which is capable of both lighting and signaling intermittent signals such as Morse code signals. The lighting and signaling device has a switch for selecting among an unlit mode, a continuous lighting mode, and an intermittent lighting mode; a clock circuit for oscillating at a single frequency in the intermittent lighting mode; a plurality of decade counters responsive to the clock circuit; and a driver for outputting periodic signals from outputs from the decade counters. The decade counters are arranged so as to output a series of dot and dash signals according to a predetermined program. The circuitry is housed within a portable flashlight.

Abstract: Disclosed herein is a portable word-processor comprising the following components; a micro-processor and, connected thereto, a manually operable input chord keyboard having four finger keys and at least one thumb key, the micro-processor being programmed to respond to signals produced by operation of a chord of a combination of up to a maximum of five keys to generate a coded signal representing a particular alpha-numeric character or processing instruction; a display device; output means for connection of the word-processor to a printer; memory means; and an internal power supply connected to power all the aforesaid components; the micro processor being additionally programmed so as to process the character signals in response to the instruction signals, feed signals to the display device for display of processed characters as an edited text, and to the memory means to store the edited text and print format instruction signals available for transmission through the output means.

Abstract: A system is disclosed for utilizing command buffers in a microprocessor controlled electronic code keyer for storing, rather than text to be transmitted, command strings for keyer operation. The command string is defined by a series of keypad closures for selecting a sequence of text buffers to be transmitted. In addition, the command buffers may be used during automatic text transmission to selectively change keyer parameters such as the speed of character transmission, inter-character and inter-word spacing, dot-to-dash-to-space ratio, or the number of times the contents of a text buffer will be automatically repeated. The use of text and command buffers permits the formation of essentially errorless Morse code transmissions, substantially enhances keyer operating and makes more efficient use of available memory.

Abstract: The binary coded decimal of a number is selectively loaded into presettable counters. A switching means sequentially connects each of the binary levels of each of the digits comprising the number to an International Morse Code memory addressing a selected segment thereof. A binary counter sequentially addresses each of the bit locations of the selected memory segment thereby serially generating, in Internatonal Morse Code, the digit contained in the addressed memory segment. Upon completion of the code translation of a selected digit of the number, the switching means connects the binary levels of the counter containing the next lesser significant digit to the memory address and the binary counter is recycled. Means are included for selectively deleting the generation of leading zeros of the number and for selectively abbreviating the International Morse Code generation of certain digits comprising the number.

Abstract: A circuit for producing a pulse succession of long duration from several mutually independently produced synchronous pulse successions of shorter duration in which the output signal is derived as a logical function. Each of the pulse successions of shorter duration is produced by a separate generator and the pulse succession program of each of the generators is determined by a common information carrier, in particular a punched strip. A memory is interposed to take the information which is emitted separately by the information carrier for each of the generators and controls the respective generator. A sensing device is provided for the information carrier to respectively evaluate a portion of the information contained therein, the sensing device being connected to a series-parallel converter having storage facilities for the parallel result to effect adjustment of the individual generators.

Abstract: A code generator for text transmission devices emits code characters assigned to subscribers over a trunk line in order to allow a subscriber to be recognized. The code characters are stored in a memory which is formed from electronically operable storage elements and remain unchanged following disconnection of the operating voltage. A write-in control unit is provided for writing the code characters into the memory and a read-out control unit is provided for reading the code characters from the memory. The write-in control unit can be connected by way of a line matching unit to the trunk line by way of which the texts are normally transmitted, and the code characters can be input into the memory from a central position by way of the trunk line.

Abstract: A data transfer terminal of the type including a keyboard means, a display means and a printer for use in a data center controlled data transfer system. The printer of the data transfer terminal is provided with a library phrase memory. The library phrase memory contains a plurality of predetermined, commonly used phrases at various predetermined addresses in the library phrase memory. The addresses of the phrases correspond to codes which are included in messages sent by the data center to the data transfer terminal whereby the length of the messages from the data center to be printed by the printer of the data transfer terminal is greatly reduced.

Abstract: Apparatus for coding input data characters from a keyboard incorporates apparatus for recognizing characters which are to be represented by two successive code representations, rather than the usual single code representation for each character. When a two-code character is recognized, ordinary operation of the apparatus is inhibited, and an auxiliary counter is energized which, in conjunction with a fixed-value storage device, causes the plural code signals to be generated in the correct sequence, after which normal operation of the apparatus is resumed.

Abstract: A keyswitch for a keyboard which may generate either a first signal or a second signal is formed by a pair of saturable magnetic cores and corresponding drive and sense line wires that are molded into a unitary support assembly in a keyswitch housing. A plunger and a magnet assembly that is depressible relative to the housing and which supports at least one permanent magnet and a pair of compressible springs allows for the unsaturation of one core and the compression of one spring upon depression of the plunger to a first position and for the unsaturation of the second core by the compression of the second spring upon further depression of the plunger and magnet assembly to a character second position.

Abstract: A thin wall-mountable unit is disclosed which produces a composite image from a card-like object placed in a slot and a person standing adjacent thereto. The unit includes a pair of lenses for focusing images of the objects on intersecting focal planes. A mirror is mounted in the unit at the intersection of the focal planes. A T.V. camera is employed to sense the composite image resulting therefrom.

Abstract: A locking cover is provided which is mounted at one edge on a television set and so arranged when in locked position that all the primary television controls are covered and unaccessible to the hand, and which when unlocked, may be swung or slid to a position where access to the primary controls is provided. The device is further characterized in that when in locked position, it does not substantially interfere with sound coming from the loudspeaker aperture of the television set and does not cover the picture tube. The cover may be locked in place with any conventional type of lock and key such as a pin tumbler lock or a padlock, and may be unlocked by a key, combination arrangement or any other suitable lock.

Abstract: A first panelboard, having a plurality of frequently used primary control elements arranged thereon, and a second panelboard, having a plurality of occasionally used secondary control elements arranged thereon, extend from a base to provide a module which is pivotally carried by the cabinet of an audio-visual receiving apparatus. Detent means interacting between the module and the cabinet selectively retains either panelboard in the display position. In a further embodiment, the module is enclosed within the cabinet and the selected panelboard is displayed through an opening therein.

Abstract: A code generator for teleprinters or data printers which, for the recognition of the subscriber, emits a sequence of character signals assigned to the subscriber. A memory is provided which is constructed from electronically operable storage elements in which the character signals are stored and are not altered after the disconnection of the operating voltage. Registers are provided which contain the addresses of the particular operated storage elements and a read-out control unit is provided by means of which the character signals are read out from the storage elements.

Abstract: An arrangement for synchronizing one or more input/output devices in teleprinters in the context of a subdivision, necessitated by the use of a five-bit code (CCITT 2) for communications transmission purposes, of the total quantity of characters into letters/figures levels employs a storage device in which the level relationship (letters and figure levels) of the character last transmitted or received is stored. A comparator connected to the storage device compares the level relationship of the stored character with that of a character ready for transmission and in the event of disparity operates, via a logic arrangement, to effect the introduction of a level-related switching symbol.

Abstract: A system for providing a display of information to a helicopter pilot perting the pilot to hover over a fixed land position selected while in flight includes a television monitor upon whose screen the pilot sees the forward scene on the top portion of the screen and the scene beneath the helicopter on the bottom portion of the screen. The bottom portion of the monitor screen is provided with symbols whose position or length varies and which represent altitude, ascent or descent velocity, rate and direction of movement, acceleration and the position of the helicopter relative to a selected ground object. The system includes a mirror which may be positioned to reflect the ground into one-half of the viewing angle of the image camera, the mirror being stabilized against pitch and roll by a motor system controlled by a gyroscope system.

Abstract: A cathode ray oscilloscope assembly adapted to be connected to a circuit for conveying electrical input signals and electrical power thereto, includes a cathode ray oscilloscope tube adapted to be connected to the input circuit to establish an electron beam for illuminating the face of the tube screen, a deflection device mounted on the tube neck portion and connected electrically to the input circuit for moving selectively the beam, a rear end circuit panel fixedly connected to the tube and extending transversely to the neck portion of the tube, a plurality of side circuit panels extending forwardly from said rear panel toward the tube screen parallel to the axis of the neck portion of the tube to form an open boxlike configuration with the rear end panel for receiving the neck portion of the tube, and connectors interconnecting mechanically the adjoining marginal edges of the side panels to the rear panel and interconnecting electrically circuit elements mounted on the rear end and side panels for controlli

Abstract: An ion current is produced between two spatially separated electrodes by creating a corona discharge about one of these electrodes and causing ions to flow to the other electrode. Aerosols introduced into the region between the two electrodes interact with the flowing ions causing a resultant decrease in ion current. A decrease in ion current is sensed to indicate the presence of aerosols. A reflecting member reflects aerosols towards the electrodes causing a relatively lengthy interaction between the aerosols and the ion current.