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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7069510 | In-vehicle audio browser system having a common usability model An in-vehicle audio browser includes a first set of buttons that are configured to select a preset item. A second set of buttons move forward and backward through a list of items in the audio browser. A third button selects among multiple bands associated with the a... | 06/27/2006 |
| 7047547 | Electronic television program guide schedule system and method An electronic program schedule system which includes a receiver for receiving broadcast, satellite or cablecast television programs for a plurality of television channels and a tuner for tuning a television receiver to a selected one of the plurality of channels. A ... | 05/16/2006 |
| RE38600 | Apparatus and methods for accessing information relating to radio television programs An apparatus and method for ordering supplemental information about programs playing at a broadcast receiver. The method includes reproducing programs from one of a plurality of stations, recording an identification of a station and a time of a program, entering thi... | 09/28/2004 |
| 6594281 | FM multiplex broadcasting receiver and storage of received data in FM multiplex broadcasting receiver A prefix corresponding to a data block at the head of each of data groups in data of a layer 3 of a received FM multiplex broadcast program and data of a layer 4 of the received FM multiplex broadcast program are stored in first storage means. When a data... | 07/15/2003 |
| 6385466 | Portable terminal device A portable terminal device including display means 40 for indicating characters and figures, light-emitting means 31 and 32 for emitting exposing light to be used as backlight of the display means, drive means 21 and 22 for activating the light-emitting m... | 05/07/2002 |
| 6151515 | 7, 8 segment display for mobile radio telephone A display for a mobile radio telephone apparatus includes a single 7, 8 segment LED display for displaying alphanumeric characters one at a time in sequence as dialed, and which also displays indications of various operating parameters of the telephone ap... | 11/21/2000 |
| 6101377 | Method and apparatus for improving multi-channel radio communication A method for improving multi-channel radio communication. Firstly, providing a motor vehicle having a multi-channel radio. Secondly, mounting a visual display device to the motor vehicle in such a manner that the visual display device is visible from a di... | 08/08/2000 |
| 6038434 | Method of and apparatus for receiving and displaying RDS data A method of receiving and displaying RDS data, which are multiplexed to a broadcast electric wave, includes the steps of: receiving the broadcast electric wave; detecting predetermined data in the RDS data, which are included in the received broadcast ele... | 03/14/2000 |
| 6018648 | Process and device for displaying a transmitter name and a type of program transmitted in a digital data telegram on a radio receiver display A process and a device for displaying the transmitter name and type of program transmitted by a radio transmitter in a digital data telegram on the radio receiver display during a search run and where a timing element controls the display of information.... | 01/25/2000 |
| 5949492 | Apparatus and methods for accessing information relating to radio television programs An apparatus and method for ordering supplemental information about programs playing at a broadcast receiver. The method includes reproducing programs from one of a plurality of stations, recording an identification of a station and a time of a program, e... | 09/07/1999 |
| 5877733 | Liquid crystal display device and radio reception apparatus provided with same The invention is directed to simultaneously implement display by using the first and second liquid crystal display sections. While a voltage (1/2 VL) which is a half of a drive voltage VL supplied from the second drive power supply b... | 03/02/1999 |
| 5697080 | Method of and apparatus for selecting station in multiplexed broadcast, and receiving system A method of selecting one of broadcast waves, which are received by a receiving system for receiving the broadcast waves in each of which a sub signal including input sorting information to indicate a sort of broadcast for each of the broadcast waves is m... | 12/09/1997 |
| 5642102 | Pager with automatic detection of insertion into holster A holster for a radio pager contains an electrical element which can be detected by the matching radio pager when the pager is inserted into the holster. In one embodiment the pager and holster have matching electrical contacts which are made when the pag... | 06/24/1997 |
| 5603090 | Automatic channel identification A method for tracking, in a roaming receiver, RF channels in a multi-area system where each area has a unique RF channel and each unique RF channel has a unique address for each user. A plurality of telephone area codes are stored into a memory of the rec... | 02/11/1997 |
| 5101508 | Radio receiver A radio receiver receives a radio broadcast by performing a frequency conversion on the basis of an oscillation signal from a phase locked loop. Specifically, a memory has a data table including broadcasting station data, broadcasting time data, and frequ... | 03/31/1992 |
| 4849750 | Paging receiver with dynamically programmable channel frequencies and functionality A paging receiver is disclosed which is compatible with transmissions from analog or digital paging transmitters. The paging receiver has a command structure which permits it to be dynamically programmable to change its functionality including programming... | 07/18/1989 |
| 4817194 | Radio having an invertible display with reversible controls A radio includes a frequency synthesizer that is under the control of a microcomputer. Stored in the microcomputer's memory is a menu of predetermined frequencies from which a particular frequency is selected by scrolling through the menu. Activating a fi... | 03/28/1989 |
| 4817196 | Apparatus for tuning the antenna of a miniature personal communications device An antenna tuning arrangement is provided for a miniature personal communications device which is normally worn on the body. The device includes a wristband having an antenna and antenna tuning elements which are normally concealed, to allow the antenna t... | 03/28/1989 |
| 4734694 | Pager A pager which is usable in a plurality of service areas is disclosed. The pager includes a radio section for selectively receiving and modulating two or more radio frequencies, and frequency switching means for switching the receive frequency of the radio... | 03/29/1988 |
| 4688261 | Frequency synthesized multichannel radio apparatus A frequency synthesized multichannel radio apparatus comprising a synthesized tranceiver and a remotely mountable control unit. All the possible channel frequencies available to users in a large geographical area are stored in a PROM mounted in the transc... | 08/18/1987 |
| 4661994 | Frequency and volume display for a receiver A receiver having a tuner for tuning to a desired broadcast station and connected with a detector through which a demodulated signal is supplied as an input signal to a function selector which receives at least one other input signal from another source t... | 04/28/1987 |
| 4651282 | Microcomputer based keyboard command entry concept for VHF communication and navigation systems Airborne navigation and communication systems are disclosed including a VOR/LOC (VHR Omnirange/Localizer) receiver and a communication transceiver each with separate control and display panels. Each panel includes a ten push-button press keys numbered 0-9... | 03/17/1987 |
| 4525740 | TV Receiver with multiplexed microprocessor keyboard scanning and channel number display A system eliminates digital switching video noise by performing several microprocessor controlled operations in a television receiver during the vertical retrace interval. A microprocessor maintained in an idle state until detection of a vertical retrace ... | 06/25/1985 |
| 4510623 | Television channel lockout An electronically tuned television receiver is provided with a channel lockout feature to control viewer program selection. The television receiver has a tuner local oscillator (101), the frequency of which is controlled by a phase lock loop (12) having a... | 04/09/1985 |
| 4387400 | Tuning system for a television receiver A tuning system is described for use with a television receiver which has channel selection keys on a keyboard for selecting a desired television channel. The system employs a frequency synthesizer for tuning the receiver's local oscillator to a selected ... | 06/07/1983 |
| 4385399 | Display device A display device for digitally displaying a numerical value of plural figures on a display unit includes a detector for detecting the variation rate of the numerical value to be displayed. The brightness of a display section for an arbitrary figure of the... | 05/24/1983 |
| 4357710 | Radio apparatus Radio apparatus and in particular VHF transmitter and receiver apparatus for aeronautical use comprises a frequency synthesizer 17 which is able to generate any desired frequency within the range of the radio and a number of frequency channel selection de... | 11/02/1982 |
| 4320255 | Radio with audio controls and associated displays An electronic pushbutton tunable radio (10) having various audio controls is disclosed. A single pushbutton (22) is utilized to implement volume, fader and balance modes of operation during which up/down pushbuttons (20,21) control the overall and relativ... | 03/16/1982 |
| 4317225 | Channel identification apparatus useful in a sweep type tuning system In a tuning system for generating a tuning voltage for tuning a television receiver, channel identification apparatus includes a memory for storing binary signals representing boundary voltages having magnitudes corresponding to magnitudes of the tuning v... | 02/23/1982 |
| 4291412 | Portable radio frequency/channel display system A portable radio frequency/channel display control system for use in a portable radio device or the like which is powered by a battery and of the type which includes a display for indicating the frequency/channel to which the radio is tuned. The system se... | 09/22/1981 |
| 4285065 | Radio with audio graphic equalizer A pushbutton tunable radio having an integral audio graphic equalizer is disclosed. During a tuning mode of operation for the radio actuation of any of five presettable pushbuttons results in the selection of a predetermined radio channel frequency within... | 08/18/1981 |
| 4270213 | Sequential channel selector system A channel selector system in a radio for sequentially selecting one of a plurality of channels and rapidly scanning through any restricted channels such that the restricted channels are not displayed and appear to be skipped. The radio includes a frequenc... | 05/26/1981 |
| 4267597 | Marine telephone radio An improved marine radio telephone is disclosed having a microphone, display, speaker, and controls. The controls include switches and a keyboard located together with a display in a panel, a microphone conveniently located as to the front panel, and a pu... | 05/12/1981 |
| 4266295 | Continuous tuning control particularly adapted for use in variable frequency receivers and generators This disclosure describes a continuous tuning arrangement for a variable frequency response circuit of the type covering a relatively wide frequency range. Many techniques for accommodating a wide frequency range are known and include synthesizers, wavefo... | 05/05/1981 |
| 4264979 | Display device for CB radio A display panel for a CB transceiver is disclosed which identifies to others the channel being used by the operator and other information such as the operator's code name or that the operator needs emergency assistance. The display panel is adapted to be ... | 04/28/1981 |
| 4261055 | Electronic tuning circuit arrangement for direct and indirect station selection using a memory circuit A circuit arrangement for selecting the tuning of a radioelectric signal in a signal receiving set, in particular a television set, comprises a memory circuit having a plurality of cells for storing in digital form information relating to a plurality of t... | 04/07/1981 |
| 4254506 | Channel identification apparatus useful in a multiband sweep type tuning system In a tuning system for generating a tuning voltage for tuning a television receiver, channel identification apparatus includes a memory for storing binary signals representing boundary voltages having magnitudes corresponding to magnitudes of the tuning v... | 03/03/1981 |
| 4245348 | Center frequency tuning system for radio-frequency signal receiver A system is provided for developing a gating signal when a radio-frequency signal receiver is tuned to the center-frequency of a selected radio-frequency signal. The system comprises circuit means for tuning the receiver to a plurality of frequencies with... | 01/13/1981 |
| 4232397 | Automatic channel selection apparatus An automatic channel selection apparatus comprises an electronic tuner having a local oscillator an oscillation frequency of which is controlled by an applied voltage, a voltage sweep circuit for sweeping the voltage to be applied to the local oscillator,... | 11/04/1980 |
| 4178547 | Remote microphone with approved channel selector A microphone, which may be hand held for use in association with a radio transceiver, including transceivers commonly known as Citizen Band Radios, has novel means associated with the microphone for selecting and indicating the receiving or broadcasting c... | 12/11/1979 |
