Matches 1 - 50 out of 71 1 2 >


Match Document Document Title
8831588 Data transmission adjustment system and data transmission adjustment method  
An data transmission adjustment system that comprises a server and a plurality of data transmission devices within a sensing region. The server adapts to receive a sensed data from at least one...
7962101 Method and system for providing a routing protocol for wireless networks  
A method and system for providing a network protocol for utility services are disclosed are disclosed. In one embodiment, a computer-implemented method determines whether a measured real signal...
7701378 Method of validating a number in an electronic device and associated electronic device  
The present invention relates to a method of validating a number comprising a plurality of digits, the number having a maximum value, each digit being successively entered by a user during several...
7620119 Communications receiver with digital counter  
A communications receiver includes a digital counter to count transitions of a carrier signal subject to on/off keying.
7583988 Folder type mobile telephone and operating method thereof  
A folder type mobile telephone and control method therefor are provided which utilize an auxiliary display unit viewable whether the folder is opened or closed. The folder type mobile telephone...
7548735 Signal detecting frequency counter  
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...
7505738 Broadband receiver  
A broadband receiver exhibiting reduced interference to a frequency counter caused by a local oscillator. The broadband receiver is arranged for detecting a radio signal of strong reception...
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...
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...
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...
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...
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...
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...
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...
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...
RE31327 Proportional digital control for radio frequency synthesizers  
A proportional digital control system for radio frequency synthesizers using binary coded decimal control to a frequency synthesizer tunable in contiguous small interval increasing or decreasing...
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...
RE30949 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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
4048562 Monitoring system for voltage tunable receivers and converters utilizing voltage comparison techniques  
A system for remotely monitoring or determining the channel to which a voltage tunable receiver (or CATV converter) has been tuned includes an encoder for measuring the magnitude of the tuning...
4041402 Channel selection and indicating system  
A channel programming and indicating system for a television receiver, in which a programming of channel numbers is achieved by the plurality of receiving channel selecting switches. A random...
4024477 Received signal frequency indicating system  
There is provided a received signal frequency indicating system for indicating a frequency of a signal received by a heterodyne type receiver, and, when a local oscillator signal of the receiver...
4023107 Sequential channel tuning system with a memory  
An all-channel two mode television tuning system includes a presettable counter for deriving the number of a receivable television channel by counting the local oscillator frequency. The frequency...

Matches 1 - 50 out of 71 1 2 >