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| Patent # | Description |
|---|---|
| US-5,537,482 |
Magnetic, variable-volume sound producing device A magnetic and variable-volume sound producing device which comprises a housing member, a substantially planar acoustic-producing diaphragm supported along its... |
| US-5,537,481 |
Horn driver A horn driver includes a driver body and pole piece positioned therein. A throat extends through the pole piece along a longitudinal axis through the horn... |
| US-5,537,480 |
Sound output system A loudspeaker unit for producing wide dispersion sound for use in wide imaging stereo has a plastic case defined by a front onto which a separate sound mirror... |
| US-5,537,479 |
Dual-driver bass speaker with acoustic reduction of out-of-phase and
electronic reduction of in-phase... A modification and addition to the prior art type of multiple driver push-pull loudspeaker system for subwoofer, bass, or lower midrange frequencies, which prior... |
| US-5,537,477 |
Frequency characteristic shaping circuitry and method Frequency characteristic shaping circuitry having a plurality of bandpass filters to which an audio signal is supplied and a plurality of variable gain... |
| US-5,537,476 |
Secure viewing of display units by image superposition and wavelength
separation Apparatus for masking a displayed image by mixing the image with a secondary image that is electronically generated to be related to the primary image that when... |
| US-5,537,475 |
Efficient digital signature algorithm and use thereof technical field A digital signature scheme wherein the signature of a message M relative to a public key is computed by means of a secret key. The scheme begins by having the... |
| US-5,537,474 |
Method and apparatus for authentication in a communication system A method and apparatus for authenticating a roaming subscriber. In a preferred embodiment, a subscriber receives a challenge that is in a format of a local... |
| US-5,537,473 |
Video recorder system A video recorder system adapted to receive subscription television services is of the type which controls access to the subscription services by means of a smart... |
| US-5,537,472 |
Portable telephone with flip stand or hinged doors and having speaker
therein A portable telephone includes a telephone body having a lower recess at the rear side thereof; a flip stand pivotally mounted by a pivot pin to the telephone... |
| US-5,537,471 |
Weatherproof telephone station protectors A weatherproof telephone station protector module suitable for use exposed to the weather including a hollow housing with first and second sealed test terminals... |
| US-5,537,470 |
Method and apparatus for handling in-bound telemarketing calls A method and apparatus for handling incoming calls to a service provider facility having a number of agent terminals. The method includes the steps of routing an... |
| US-5,537,469 |
Bandwidth allocation of DPNSS networks A method for providing dynamic allocation of trunk circuits of different classes of traffic having different bandwidths in a Digital Private Network Signalling... |
| US-5,537,468 |
Method for the non-hierarchical routing of traffic in a communications
network A non-hierarchical method for routing traffic to achieve optimum throughput values under all traffic load states by modifying the number of alternate routes... |
| US-5,537,467 |
Method for forwarding a call to a temporarily utilized portable telephone A distributed service management system for providing communication services comprises a plurality of individual service management systems operated by a... |
| US-5,537,466 |
Intelligent communications networks A service node is used in an intelligent communications network to provide services for customers. The node includes a service defining sub-system arranged to... |
| US-5,537,465 |
Integrated telephone and intercom system An integrated telephone system is provided, having a connection to a Central Office (CO) line and a connection to at least one secondary line. The CO line and/or... |
| US-5,537,464 |
Method and apparatus for the billing of value-added communication calls New use of the existing PSTN for capturing data to charge enhanced service provider (ESP) fees on phone bills of numbers terminating calls originated by dialing... |
| US-5,537,463 |
Magnetic modem in a remote control The remote control comprises a microprocessor including a CPU and memory, a keypad including keys for operating the remote control coupled to the microprocessor,... |
| US-5,537,462 |
Supervisory interface controller and method for remotely controlled
terminal A terminal which is remotely controlled over a digital data line includes a computer and a videotelephone for sending and receiving audio, video and digital data... |
| US-5,537,461 |
Information services platform A facility is provided in a telecommunications network which transforms a particular type of telephone call connection, e.g., a connection carrying a call placed... |
| US-5,537,460 |
Method and apparatus for determining the precise location of a modified
cellular telephone using registration... A remote command and control center follows and finds a small object located within the geographic area of coverage of one or more cellular radiotelephone... |
| US-5,537,459 |
Multilevel cellular communication system for hospitals A protocol controlled, four level radio communication system for use in a local area such as a hospital, that provides transceivers for fixed users such as... |
| US-5,537,458 |
Facsimile transmission in a digital cellular radio network A facsimile service arrangement in a digital cellular radio network including radio terminal equipment; data terminal equipment which is connected to the radio... |
| US-5,537,457 |
Method for handling calls to a non-registered mobile subscriber in a
mobile telephone system A method for handling calls to a terminal in a mobile telephone system of the kind in which the call is handled by an ISUP/IAM message which has a static... |
| US-5,537,456 |
Terminal device for subscriber telephone interconnection This invention relates to a terminal interface for interconnection of one or more subscriber telephone lines. The interconnections are made, in the interface... |
| US-5,537,454 |
Radiation therapy grid for use with treatment couch A radiation table insert comprises a perimeter frame having at least one open side and a radiation transparent rigid grid mounted within said perimeter frame, to... |
| US-5,537,453 |
Coaxial laser targeting device for use with X-ray equipment A coaxial laser targeting device is provided for use with x-ray equipment. The device includes an x-ray transparent housing, which encloses a gimbal platform... |
| US-5,537,452 |
Radiation therapy and radiation surgery treatment system and methods of
use of same A radiosurgery and radiotherapy system to provide diagnostic imaging and target localization via a patient 3-D mapping means such as a CT scanner or MRI, patient... |
| US-5,537,450 |
On-line analysis of fuel integrity Failed fuel cladding in light water reactors can lead to premature reactor shutdown for removal of the failed fuel bundles from the core. The lost power and... |
| US-5,537,449 |
Clock synchronizing circuitry having a fast tuning circuit Clock synchronizing circuitry with a fast tuning circuit has a differentiator for detecting the advanced/delayed state of the phase of an input clock signal and... |
| US-5,537,448 |
Switchable PLL circuit with constant amplification gradient An improved Phase-Locked Loop (PLL) radio receiver circuit includes a phase detector, either an active loop filter or a set of parallel, alternately selectable... |
| US-5,537,447 |
Synchronous transmission system for carrying multiplexed signals The invention relates to a transmission system comprising a synchronizer for forming a multiplex signal, comprising at least a device for conveying the multiplex... |
| US-5,537,446 |
Smoothing delay-sensitive traffic offered to asynchronous transfer mode
networks A methodology and concomitant circuitry for smoothing delay sensitive traffic utilizes short term traffic forecasts and guarantees meeting a prespecified delay... |
| US-5,537,445 |
Variable length tracebacks A digital communication system including Viterbi decoder for tracing a path through a trellis of individual state information and method of operation are... |
| US-5,537,444 |
Extended list output and soft symbol output viterbi algorithms A family of extended Generalized Viterbi Algorithm (GVA) and Soft Output Viterbi Algorithm (SOVA) decoders is disclosed. In one embodiment structural aspects of... |
| US-5,537,443 |
Interference signal cancelling method, receiver and communication system
using the same Pluralities of estimated desired and interference signal sequence candidates corresponding to the states of transition of desired and interference signals... |
| US-5,537,442 |
Instantaneous phase detecting circuit and clock recovery signal
generating circuit incorporated in differential... A clock recovery signal generating circuit for generating a clock recovery signal includes a plurality of detection axis cross detectors varied in magnitude of... |
| US-5,537,441 |
Controlled simultaneous analog and digital communication A method and apparatus for control of concurrent communication of analog information and digital information. In general terms, when the communication channel is... |
| US-5,537,440 |
Efficient transcoding device and method The present invention provides a transcoder for transcoding of digitally encoded bit streams produced by predictive encoders. The transcoder of this invention is... |
| US-5,537,439 |
Decision directed algorithm control method A method for adaptively turning on or off a decision directed algorithm (DDA) is performed according to the convergence state of the data to be equalized in a... |
| US-5,537,438 |
Method of equalizing a receive data block in a time-division multiple
access communication system and receiver... In mobile radio communications systems using time-division multiple access (TDMA), intersymbol interference caused by time differences in multipath media is... |
| US-5,537,437 |
Initialization equalization for modulation and demodulation using
special training pattern A modulation and demodulation system suitable for use with a modem (modulator and demodulator apparatus) of a first polling type. The system allows reproduction... |
| US-5,537,436 |
Simultaneous analog and digital communication applications A number of arrangements and methods that achieve concurrent communication of analog information and digital information. In general terms, when the ... |
| US-5,537,435 |
Transceiver apparatus employing wideband FFT channelizer with output
sample timing adjustment and inverse FFT... A physically compact, multichannel wireless communication transceiver architecture employs overlap and add or polyphase signal processing functionality, for... |
| US-5,537,434 |
Frequency hopping control channel in a radio communication system A communication system having a frequency hopping scheme which provides an improved initial synchronization in mobile stations of control channels. Special... |
| US-5,537,433 |
Semiconductor light emitter A semiconductor light emitter, such as the light-emitting diode or the semiconductor laser, having a structure in which a light emitting area or an active layer;... |
| US-5,537,432 |
Wavelength-stabilized, high power semiconductor laser A wavelength-stabilized, semiconductor laser having a light amplifying diode heterostructure with a flared gain region in an external resonant cavity. The flared... |
| US-5,537,431 |
Method and apparatus for bar code reading and decoding A method and apparatus reliably and robustly decode single width bar codes that may be placed on a variety of materials. The decoding is independent of whether... |
| US-5,537,430 |
Trellis-coded modulation system A convolutional encoder for a trellis coded modulation (TCM) system includes a first adder first outputting a first output bit by a modulo-two sum of a present... |
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