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Document Title |
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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... |
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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... |
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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... |
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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. |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |