Abstract: Provided are a backlight unit and a display device having the same. The backlight unit includes a case having an opening, at least one lamp assembly disposed on a side surface of the case and including a light source, an optical transreflective unit on the case, the optical transreflective unit transmitting a portion of first light passing through the opening and reflecting a portion of second light generated from the light source, and an optical sheet including a first diffusion unit on the optical transreflective unit.

Abstract: A light emitting diode (LED) driving apparatus is provided, which includes a power conversion circuit for receiving and converting an input power so as to generate a DC voltage to simultaneously drive a plurality of LED strings arranged in parallel; and a plurality of current regulation chips each having a single regulation channel and respectively corresponding to the LED strings, wherein an ith current regulation chip is only used for regulating a current flowing through an ith LED string, where i is a positive integer.

Abstract: A multiple position recorder having mechanisms for rocking a check lever for preventing a dot print wheel or dot and figure print wheels from lowering which is mechanically constructed while the recorders other mechanisms, such as mechanisms for setting the gap of dot printing and figure printing, mechanisms for synchronization with a driving shaft and the like are constructed by electric circuits.

Abstract: A chart recorder is described in which the writing head is rotatable by a motor to position any one of several writing tips over the paper. The motor is mounted on the same carriage as the writing head for movement relative to the paper.

Abstract: This disclosure is concerned with a novel digital multi-point recorder that is microprocessor-controlled and enables impact printing from in back of the recorder paper to provide a front visible flat print-out of pages of on-line running summary data suited for operator viewing in industrial and similar locations, and providing a record for direct use in reports and logs.

Abstract: Apparatus for indicating unauthorized delivery of liquid product for use in connection with a Veeder-Root Counter-Printer is characterized by a timer arrangement adapted to measure the time duration of an interruption in liquid product flow and to prime the printer's sale sequence number for incrementation if the duration of the interruption exceeds a predetermined time interval. If flow is resumed before the same ticket is removed from the printer, a nonsequential sale sequence number is imprinted on the ticket when it is removed, thereby providing an indicia that flow has been interrupted for at least the predetermined interval.

Abstract: A thermal strip chart recorder which allows plotting of one or more analog graphs and simultaneous printing of a plurality of lines of related alphanumeric information. Thermally sensitive chart paper is transported around an edge structure and across a viewing platen. The edge structure has an elongate flat surface having two longitudinal edges which are parallel to each other and transverse to the strip of paper. One of these edges acts as a knife edge for plotting one or more analog graphs using a corresponding number of heated galvanometric stylii. The flat surface is used to simultaneously print a plurality of lines of alphanumeric data using an opposing thermographic print head having an elongate array of selectively heatable elements oriented transverse to the paper strip. The flat surface is resilient over at least the portion thereof opposing the print head thermal elements.

Abstract: A multipoint recorder has a multicolor ink cartridge arranged to be selectively aligned with a recording head having a plurality of selectively energizable recording elements whereby a color from the multicolor ink cartridge is selected for printing by the recording elements. A fixed color operation of the recorder enables a recording to be made in a single color by maintaining a preselected alignment of the recording head and a desired color in the multicolor ink cartridge. Alternatively, the color of the recording can be selectively altered at any time to produce a multicolor recording by selecting a corresponding color from the multicolor ink cartridge for each recording.

Abstract: A multiple recorder printing device for recording values of variable amounts on a moving recording tape in the form of consecutive symbols of the same or different colors includes a driven common drive means to both rotate the rotary printing head and move the printing head toward and away from the recording tape. The drive means permits rotation of the rotary printing head to be momentarily arrested during the period that a printing tip on the rotary printing head is in contact with the recording tape to assure clear printing on the recording tape without smudging.

Abstract: A multipoint recorder has a multicolor ink cartridge arranged to be selectively aligned with a recording head having a plurality of selectively energizable recording elements whereby a color from the multicolor ink cartridge is selected for printing by the recording elements. A fixed color operation of the recorder enables a recording to be made in a single color by maintaining a preselected alignment of the recording head and a desired color in the multicolor ink cartridge. Alternatively, the color of the recording can be selectively altered at any time to produce a multicolor recording by selecting a corresponding color from the multicolor ink cartridge for each recording.

Abstract: A recording head for a multipoint recorder including a drum bearing a number of stylii regularly spaced around the drum periphery and rotatably mounted on an axle in a moving carriage sliding along a bearing bar mounted in the chassis of the recorder, means for rotational driving said drum means for temporarily displacing the drum in the direction of the strip chart and means for translational displacement of the carriage along the bearing bar with the means for rotational driving the stylii bearing drum has a Geneva cross rigidly connected to the drum and driven by a pin on a member wedged in a longitudinal nut in the bearing bar which is rotationally driven by a motor gear system mounted on the chassis of the device and that the means for causing the displacement of said recording head are formed by a cam rigidly connected to a gear wheel which meshes with a gear wheel of said pin bearing member whereby the cam is cooperating with an abutment of a housing supporting the stylii bearing drum and mounted on sa

Abstract: A data recorder for recording and simultaneously printing both analog and gital data on the same strip chart. The simultaneous recording of both the analog and digital data provides a permanent time base correlation of the event(s) represented thereby which is extremely useful for instant analysis of later study. In a preferred embodiment, two channels of analog information are recorded by pen styli and are representative of the output of a pair of condensation nuclei counters for monitoring atmospheric pollution. The digital data is recorded simultaneously adjacent the analog information in its own channel and represents position coordinates corresponding to the location of the airborne counters at any given point in time and may, for example, comprise the digital output of a LORAN-C navigator. The simultaneous output allows immediate correlation between the maxima and minima of the analog traces and position.

Abstract: A thermographic strip chart recorder for the recording of medical data includes a thermo printout head for the digital recording of additional medical data. Thermo sensitive paper is transported from a supply spool over a knife edge member and across a platen. Both a galvanometrically controlled thermo stylus for recording analog data and the thermo printout head are aligned to produce their respective indicia on that portion of the paper in contact with the apex of the knife edge. The thermo printout head permits the recording of digitally coded or alphanumeric data relative to the patient in real time registration with the analog information. Physical location of the thermo printout head along the knife edge permits viewing of the paper as it crosses the platen without obstruction.

Abstract: A continuously rotatable shaft is employed in a multipoint recorder for slidably and rotatably supporting a print carriage thereon in order to minimize the friction occurring between the print carriage and the shaft while the carriage traverses the shaft and as a print wheel supported by the carriage is rocked into and out of printing engagement with a record medium. A print pad wheel is provided with characterized gear teeth for meshing with characterized gear teeth of the print wheel. This print pad-print wheel construction allows each of the markers on the outer surface of the print wheel to be brought into proper precise color alignment with an associated colored ink pad formed in the ink pad wheel as the print wheel is directly indexed by a pawl and ratchet drive from one print position to another.

Abstract: A chart recorder for graphically displaying data utilizing a strip of heat-sensitive paper and a row of heat-generating dots. The strip of heat-sensitive paper is advanced across the row of heat-generating dots, and the dots are selectively energized in response to data to be displayed by the chart recorder. The position of an energized dot along the row of dots corresponds to a value of data.

Abstract: A thermal recorder having an analog recording stylus and a digital recording head uses a stepping drive means for intermittently driving a thermally responsive recording medium past the analog recording stylus and digital recording head. The analog recording stylus is maintained in contact with the intermittently driven recording medium which the digital recording head is mounted on one end of a pivoted support arm. A solenoid is connected to the other end of the support arm and is selectively energized to bring the digital recording head into contact with the recording medium during the interval between the stepped movements of the recording medium when the recording medium is at rest.