Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7831231 | Apparatus for automatically finding a radio program The invention relates to a method for automatically finding an AM radio program, by which an AM radio receiver is tuned through in discrete steps, such that, for each set AM frequency, the reception quality at the currently set AM frequency is determined, the field ... | 11/09/2010 |
| 7433414 | Intelligent array radio architecture A receiver sets weights for an antenna array according to a series of algorithms including an energy algorithm, a least squares algorithm and a least mean square algorithm. ... | 10/07/2008 |
| 7369826 | Method for monitoring broadcast signals at alternative frequencies and gain control unit Many broadcast stations transmit their programs via a variety of different frequencies. The invention relates to monitoring alternative frequencies during the reception of a broadcast signal at a present frequency. Whenever the broadcast signal at an alternative fre... | 05/06/2008 |
| 7356319 | Reduced power consumption A radio frequency receiver for receiving supplementary data transmitted with a radio station signal. The supplementary data includes one or more information word fields containing supplementary data transmitted with the radio station signal. The receiver includes a ... | 04/08/2008 |
| 7352412 | Miniaturized television tuner and television receiver including the same A television tuner includes an IF output terminal for outputting an IF signal converted from a received television signal to an external source, and a channel-selection PLL circuit for converting a high voltage supplied from an external source to a tuning voltage an... | 04/01/2008 |
| 7349675 | Low latency data stream encoding and transmission Described is a communication system including mobile communication devices. In the described system, the mobile devices may be wrist-worn watches such as are in common use today, except that the watches are specially configured to receive data in a “broadcast” m... | 03/25/2008 |
| 7349691 | System and apparatus for performing broadcast and localcast communications Described is a communication system including mobile communication devices. In the described system, the mobile devices many be wrist-worn watches such as are in common use today, except that the watches are specially configured to receive data in a “broadcast” ... | 03/25/2008 |
| 7330707 | Hetrodyne receiver and IC In a heterodyne receiver, the effect of an image interference signal that occurs in a case where a low intermediate frequency is used is alleviated. Circuits (12I), (12Q), (13I), (13Q), and (14) are provided to switch a heterodyne ... | 02/12/2008 |
| 7319884 | FM radio device and transmission power control method A transmission power control method includes a step (a) of receiving by a receiver a radio wave signal, a step (b) of judging whether a first identification signal is included in the received radio wave signal, a step (c) of detecting a reception electric field inte... | 01/15/2008 |
| 7274918 | Apparatus for automatically finding an am radio program The invention relates to a method for automatically finding an AM radio program, by which an AM radio receiver is tuned through in discrete steps, such that, for each set AM frequency, the reception quality at the currently set AM frequency is determined, the field ... | 09/25/2007 |
| 7236755 | Broadcast wave receiving apparatus Herein disclosed is a broadcast wave receiving apparatus, comprising: first and second tuning circuits each having a resonance frequency; first controlling means for controlling one of the first and second tuning circuits to ensure that the resonance frequency of on... | 06/26/2007 |
| 7218900 | Radio transmitter and receiver A broadband signal radio communication device which is capable of transmitting audio signals in a frequency band wider than a normal transmission band from 0 to 4 kHz in a radio system such as Bluetooth which employs a radio communication link through weak radiowave... | 05/15/2007 |
| 7206558 | Technique for determining a tuning frequency of an audio receiver A technique for determining a tuning frequency of an audio receiver includes interrupting a received radio frequency (RF) signal at an input of the audio receiver. Next, a modulated audio signal is injected into the input of the audio receiver. Then, it is determine... | 04/17/2007 |
| 7190937 | Method for determining the frequency of a radio signal 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... | 03/13/2007 |
| 7171161 | System and method for classifying signals using timing templates, power templates and other techniques A system and method for classifying signals occurring in a frequency band. One or more characteristics of one or more signals in the frequency band are detected using any suitable technology, such as a device that can generate characteristics of signal pulses detect... | 01/30/2007 |
| 7158764 | System and method for sending high fidelity sound between wireless units A system and method for sending high fidelity sound between wireless units include the capability to receive audible sounds at a wireless unit and generate signals that represent the audible sounds. The system and method also include the capability to encode a first... | 01/02/2007 |
| 7120404 | Radio reception system with automatic tuning A method and apparatus for operating a radio reception system, which comprises a plurality of receivers assigned to a common output device, in which one of the receivers is designated as audio receiver and is tuned to a frequency of a radio transmitter, and outputs ... | 10/10/2006 |
| 7116943 | System and method for classifying signals occuring in a frequency band A system and method for classifying signals occurring in a frequency band. One or more characteristics of one or more signals in the frequency band are detected using any suitable technology, such as a device that can generate characteristics of signal pulses detect... | 10/03/2006 |
| 7113741 | Optimized method of transmitting multimedia content An optimized method for the transmission of multimedia contents between a multimedia content transmitter and a multimedia content receiver in a mobile radio network transmitting a multimedia content description vector from the transmitter to the receiver, calculatin... | 09/26/2006 |
| 7107029 | Reduced power consumption A radio frequency receiver for receiving supplementary data transmitted with a radio station signal, said supplementary data comprising one or more information word fields containing supplementary data transmitted with the radio station signal, said receiver compris... | 09/12/2006 |
| 7072629 | Method for recording information transmitted over a radio frequency A method for recording information that is transmitted over a radio frequency, especially traffic information, in which, in a monitoring state, the receiving device is supplied with power in a clocked manner. While switched on, the receiving device is tuned to a pre... | 07/04/2006 |
| 7068329 | Method and system for providing a video signal In accordance with the specific embodiment of the present invention, a tuner alternates between receiving a first video signal and a second video signal, such that every other frame of a specific signal is received. This is accomplished by writing to an IF1 a... | 06/27/2006 |
| 7065333 | Method and system for playing broadcasts with a mobile telecommunication device that includes multiple tuners The invention provides a method, system, and apparatus for finding, playing, and recording broadcasts on a mobile device (400) that includes two or more tuners and also works as a cellular telephone. The user can provide specific preferences or a pattern of u... | 06/20/2006 |
| 7062238 | Radio frequency selection method and system for audio channel output The present invention is a method and system for connecting an in-vehicle radio to a wireless device. A user selection input is provided to the in-vehicle radio. A local broadcast frequency is determined based on the user selection input. A broadcast request message... | 06/13/2006 |
| 7050784 | Weather radio with channel acquisition system A weather radio adapted to automatically select a preferred channel of operation. A receiver is coupled to a signal quality circuit that outputs signal quality parameters. A controller is coupled to control the frequency of reception of the receiver and is coupled t... | 05/23/2006 |
| 7043215 | Method of performing a fast tune for a digital broadcast station in a radio receiver A radio receiver performs a fast tune to a target frequency channel potentially containing a hybrid broadcast signal for determining whether analog signal contained in the hybrid broadcast signal contains an identifying data indicating the presence of a digital broa... | 05/09/2006 |
| 7035593 | Signal classification methods for scanning receiver and other applications Signal classification techniques for classifying signals occurring in a frequency band using a plurality of classifier procedures each dedicated to identify a particular signal or signal type. The classification procedures operate on spectrum activity data that may ... | 04/25/2006 |
| 7031680 | Stop-on-station method and apparatus A method for stopping on a radio station includes calculating a radio signal quality (205) using a multipath echo indicator and determining if the radio signal quality is greater than a predetermined signal quality threshold (210). A zero crossings ind... | 04/18/2006 |
| 7027775 | Method of automatic frequency-setting for wireless microphone-receivers The present invention relates to a method of automatically setting each of frequencies in each of a plurality of wireless microphone-receivers simultaneously used in the same area, based on the combinations of simultaneously usable frequencies. Each of microphone-re... | 04/11/2006 |
| 7002638 | Automatic gain control In a method of automatic gain control for both TV and FM radio signals, the TV and FM radio signals are controllably amplified (AGC-AMP) to obtain amplifier output signals, the amplifier output signals are tuner processed (F, MIX, IF-AMP) to obtain tuner output sign... | 02/21/2006 |
| 6983128 | Radio control transmitter and receiver Radio control is used for different types of models, e.g. aircraft, cars and boats. Commonly, a number of different radio channels are allocated in a frequency band for use in radio control. If a modeller finds her or his intended channel in use, s/he can either wai... | 01/03/2006 |
| 6961548 | Method for masking interruptions on playback of received radio signals A method of masking interruptions in the playback of received radio signals is provided, in which lengthy interruptions are allowed only when modulation of the radio broadcast program currently being received is recognized as speech, and a modulation pause in the re... | 11/01/2005 |
| 6957053 | Method for selection of a receiver tuning frequency Method for tuning the reception of radio broadcast signals to an FM RDS transmitter using program related data and transmitter related data and receiver executing the method, providing a band scanning search for detecting FM RDS transmitters exceeding a predetermine... | 10/18/2005 |
| 6941120 | Apparatus and method for automatically programming frequency scanning radio receivers A frequency scanning radio receiver scans and receives transmissions on discrete radio frequencies. The frequency scanning radio receiver is programmable to monitor frequencies in a geographical area where the receiver is located. The receiver is coupled to a commun... | 09/06/2005 |
| 6928275 | Method and apparatus for compensating local oscillator frequency error The frequency error of an oscillator is minimized by characterizing the oscillator. A reference signal from an external source containing a minimal frequency error is provided to an electronic device. The external signal is used as a reference frequency to estimate ... | 08/09/2005 |
| 6925289 | Broadcast receiver and channel scanning method A channel scanning method in a multi-channel digital broadcast is provided for enabling a user to identify the broadcast contents of a channel being currently received with accuracy during the channel scan, even though the broadcast contents may change within a chan... | 08/02/2005 |
| 6912378 | Multiple band scanning receiver system having data and speech searching capability A receiver system and audio processing method for use therewith are provided. The system includes pairs of receivers with each pair receiving broadcasts on a unique broadcast band. A decoder converts the received signal to a character representation thereof. A user ... | 06/28/2005 |
| 6906684 | Controlling a telescopic antenna mast A receiver receives an electromagnetic signal via an antenna mounted on an antenna mast. A signal evaluator determines or measures a signal quality level associated with the received electromagnetic signal. The signal quality compares the determined signal quality l... | 06/14/2005 |
| 6850743 | Radio having adaptable seek sensitivity control and method therefor A tuneable radio and method for automatically adjusting the seek sensitivity alignment for seek operations. The radio has a radio receiver for receiving broadcast radio wave signals, and a tuner adjustable for selecting from a plurality of radio wave signal channels... | 02/01/2005 |
| 6704553 | System and method for providing automatic tuning of a radio receiver and for providing automatic control of a CD/tape player A sound system with a radio receiver having the ability to automatically tune to a new radio station if (a) the current radio station is broadcasting a song, program or other content that the user dislikes and/or (b) one of one or more predetermined radio... | 03/09/2004 |
