Quotables
"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 7376404 | System and method for detecting a fault in a multiple receiver system A system and method for receiving output signals from each receiver of multiple receivers, the output signals generated based on receipt of a same transmission; incrementing a count value associated with each receiver based on the output signals; and determining whe... | 05/20/2008 |
| 7319852 | Apparatus and method for DC offset compensation in a direct conversion receiver An apparatus for coarse compensation of a direct current (DC) offset in a direct to baseband receiver architecture utilizes a serial analog to digital converter (ADC), such as a Delta-Sigma converter, to convert the received signal to digital form. The output of the... | 01/15/2008 |
| 7116963 | Simplified high frequency tuner and tuning method A disclosed method tunes a signal from a channelized spectrum having a predetermined channel spacing. A signal of interest having a predetermined maximum bandwidth is mixed with a local oscillator signal, which has a frequency that is an integer multiple of the chan... | 10/03/2006 |
| 7046964 | Method and apparatus for determining the frequency of a radio signal during periods of stability and monitoring communications with a radio receiver A method and apparatus provide for monitoring radio frequency signals and, in conjunction with the monitoring, determining frequency of a received dominant radio frequency signal. Zero amplitude transitions of the signal are counted in primary and secondary sampling... | 05/16/2006 |
| 7017178 | Audio program reception terminal for television delivery system The invention relates to apparatus and methods for upgrading a set top terminal for use with a cable television program delivery system. A hardware upgrade or expansion card is connected to a set top terminal to enhance the functionality of the set top terminal and ... | 03/21/2006 |
| 7006797 | Coherence frequency determining system and associated radio apparatus The invention provides an apparatus and a method for determining the frequency of a radio frequency signal. The coherency of a received signal is determined and only the frequency of a coherent signal is determined. Zero amplitude transitions of coherent signals are... | 02/28/2006 |
| 6909470 | Digital broadcast recorder A digital broadcast recorder capable of recording digital television (TV) signals includes a first frequency converter which converts a received digitally modulated TV signal into a first intermediate frequency signal having a frequency lower than that of the digita... | 06/21/2005 |
| 6703931 | Multifrequency monitoring and/or alarm device and process Monitoring and/or alarm device and process including a central unit, at least one intrusion detection peripheral facility, signalling elements and radio link elements allowing radio links on several redundant channels between the central unit and at least... | 03/09/2004 |
| 5276909 | Traffic information broadcast system A broadcast and reception system provides a segmented broadcast signal for providing regional traffic information and a receiver adapted to receive selected segments of that broadcast. The segmented broadcast signal includes a number of segments which eac... | 01/04/1994 |
| 4969209 | Broadcast receiver capable of selecting stations based upon geographical location and program format A broadcast receiver is capable of selecting a broadcast station based upon a user selected program format and the geographical location of the receiver. The receiver includes a memory storing a database of information relating to frequencies of broadcast... | 11/06/1990 |
| 4949394 | Addressable PCM music broadcast receiver An addressable PCM music broadcast receiver which decodes a contraction identification code such as an address code allocated to the receiver and transmitted by a broadcasting station which performs a pay PCM music broadcast. The receiver is capable of re... | 08/14/1990 |
| 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 |
| 4282516 | Keyboard encoding arrangement In a television receiver, a keyboard encoding arrangement which makes use of an existing register for storing binary signals representing control information and existing connections coupled to respective stages of the register includes transmission gates... | 08/04/1981 |
| 4281414 | Receiving channel number indication system for television receiver An indication system for a television receiver displays a receiving channel number directly from a local oscillation signal of the turner and a signal showing the receiving band associated with the operation of the tuner. An initial value signal is genera... | 07/28/1981 |
| 4279035 | Channel number entry system A keyboard-operated, microcomputer-controlled method and apparatus for selecting a channel in a television receiver. Following selection of the desired channel, appropriate tuning data is stored in memory with the channel number display updated to present... | 07/14/1981 |
| 4270215 | Channel indicator A channel indicator suitable for use in a television receiver and an FM receiver each having an electronic tuner is disclosed in which a channel number now being received can be automatically indicated by counting the number of those local oscillation fre... | 05/26/1981 |
| 4247950 | Display for frequency received by radio receiver A display in a superheterodyne receiver having a local oscillator, adapted for displaying in a digital manner the frequency of a signal being received by the receiver by counting the local oscillation frequency by means of a preset counter wherein the dat... | 01/27/1981 |
| 4232394 | Station-signal frequency indication system for radio receiver A station-signal frequency indicating system for a radio receiver, in which the content in a counter counting an output of a local oscillator in the receiver is temporarily retained by a latching circuit and in turn is displayed by an indicator, and in wh... | 11/04/1980 |
| 4228540 | Radio receiver A radio receiver includes a phase-locked loop which is locked with the tuned frequency of a broadcast radio wave applied thereto, so that the output of the phase-locked loop is displayed by a display unit to display the tuned frequency. The displayed freq... | 10/14/1980 |
| 4225972 | System for indicating frequency of station signal received by superheterodyne radio receiver In a station signal frequency indicating system for a superheterodyne radio receiver, a station-signal frequency received by the receiver is evaluated on the basis of the oscillating frequency of a local oscillator in the receiver, the evaluation being co... | 09/30/1980 |
| 4218773 | Superheterodyne receiver of scanning type with indicator means to display received frequency and frequency being stored in memory A superheterodyne receiver of a scanning type, comprising a high frequency amplifier, a mixer, a local oscillator, an interdmediate frequency amplifier, a detector, an audio frequency amplifier, a loud speaker, and an automatic scanning/manual scanning se... | 08/19/1980 |
| 4207522 | Programmable frequency scanning radio system A frequency scanning radio system and programming means for selecting the frequencies to be used, and to determne whether or not the channels are in use. The programming means controls not only the direction but also the speed of the frequency scanning in... | 06/10/1980 |
| 4207529 | Radio receiver An AM/FM receiver provided with a frequency divider for frequency dividing the output frequency of a local oscillator to provide a count output which starts with "1" at the lower limit of a receiving frequency band and thereafter increases its count value... | 06/10/1980 |
| 4197504 | Common indicator unit for radio receiver and transceiver A common indicator unit for a radio receiver and transceiver includes a segment type indicator consisting of a plurality of digits. An indication output corresponding to the receiving frequency of the radio receiver and an indication output corresponding ... | 04/08/1980 |
| 4196395 | Preset state indicating unit in an electronic tuning type receiver A preset state indicating unit for use in an electronic tuning type receiver generates a visual indication when both a presetting switch and one of a plurality of channel selecting switches have been properly selected. The preset state indicating unit thu... | 04/01/1980 |
| 4193686 | Counting circuit for determining the incoming frequency or received channel in a high-frequency superhet receiver The counting circuit is particularly useful in a high-frequency superhet receiver including IF filters, such as ceramic filters, available as completed units having definite, pre-aligned IF values, and is of the type in which the oscillations of an AM or ... | 03/18/1980 |
| 4177428 | Circuit arrangement for amplifying oscillator oscillations and converting same to rectangular signals A circuit arrangement for digitally indicating the frequency to which an AM/FM radio receiver is tuned in which the oscillations of the AM and FM oscillators are amplified and converted to rectangular oscillations whose frequency is counted by means of el... | 12/04/1979 |
| 4163943 | Radio receiver employing premixing and digital display A short wave broadcasting receiver which can receive accurately and stably the desired station is formed with a local oscillator which comprises a variable frequency oscillator, reference frequency oscillators, premixers and band pass filters, frequency c... | 08/07/1979 |
| 4156198 | Keyboard channel selection for television receivers Apparatus is provided for tuning a varactor tuning system by means of a keyboard or other switch means. By selecting switches representing the digits of a channel member, a signal is provided for tuning a given channel with a varactor tuner. When a statio... | 05/22/1979 |
| 4123713 | Memory type tuning system with provisions to facilitate setup In a memory type tuning system having memory locations for storing information corresponding to a limited number of preferred tuning positions, a display unit normally serving to display a number corresponding to a selected tuning position is selectively ... | 10/31/1978 |
| 4114101 | Digital frequency display device A digital frequency display device for digitally displaying the operating frequency of a communication apparatus comprising a reference frequency oscillator, a first frequency mixer for mixing the output frequencies of a first oscillator of the communicat... | 09/12/1978 |
| 4110695 | Tuning circuit for high frequency receivers A tuning circuit for a high frequency receiver in which the received frequency is determined by a voltage-controlled oscillator, the present tuning frequency is indicated by a counter connected to the oscillator and producing a representation of each digi... | 08/29/1978 |
| 4103290 | Digital frequency display device A digital frequency display device includes a counter for counting a frequency to be displayed, a latch circuit for temporarily storing a plurality of digit signals from the counter and for outputting the digit signals in response to the latch pulses, a d... | 07/25/1978 |
| 4097810 | Phase locked loop tuning system with a preset channel memory A divide-by-N programmable counter arrangement of a phase locked loop tuning system is programmed by selectively coupling one of a group of preset tuning potentiometers corresponding to respective tuning positions to a monostable multivibrator. The monost... | 06/27/1978 |
| 4095182 | Display device for transceiver and like A display device for use in a transceiver and the like having a display section which normally performs digital time display and, as occasion demands, performs channel display by the aid of a change-over switch.... | 06/13/1978 |
| 4065720 | Electronic channel selector An electronic channel selector is described for providing a tuning signal at a frequency corresponding to a selected channel. A logic circuit cooperates with an uncoded rotary switch for providing control signals to an up/down counter which counts up or d... | 12/27/1977 |
| 4065727 | Variable frequency oscillator having programmable digital frequency display A high frequency variable oscillator has its frequency grossly set by a bandswitch and an uncalibrated coarse tuning control and finely tuned by an uncalibrated incremental control. The oscillator includes a broad band buffer circuit and a push-pull outpu... | 12/27/1977 |
| 4063178 | Memory tuning system with different speeds in program and operate modes An all-channel two mode television tuning system includes a two speed counter for generating channel numbers to adjust tuning. An 82 × 1 bit read/write memory is addressed in a program mode by the generated channel numbers to provide locations for storag... | 12/13/1977 |
| 4061982 | Channel selection apparatus provided with memory for digitalizing and storing channel selection voltage A channel selection apparatus having a tuner including a voltage-dependent reactance element such as a varactor diode, to which one of a plurality of channel selection voltages having different magnitudes for each of the channels is applied to select a de... | 12/06/1977 |
| 4061980 | Radio receiver with plural converters and frequency control A radio receiver including first and second frequency converters to produce first and second intermediate frequency signals, a local oscillator generating a first local signal to be supplied to the second frequency converter, a variable frequency oscillat... | 12/06/1977 |
