GPS receiver utilizing a communication link
In one aspect of the present invention, a method is described for reducing processing time due to Doppler error in a satellite positioning system (SPS) receiver having a cell based communication recei... Read More
Inventors: Krasner, Norman F.;, Assignee: SnapTrack, Inc. (Campbell, CA) |
Navigation device
In light of the above problems, it is a first object of the present invention to display points of interest and the location of a vehicle within a service area or parking area which the vehicle has en... Read More
Inventors: Kusano, Manabu; Saitoh, Katsuya;, Assignee: Alpine Electronics, Inc. (Tokyo, JP) |
Telecommunications service delivery
OF EXEMPLARY EMBODIMENTS General Overview of Physical Layer Referring to FIG. 1, at the physical or bearer level the telecommunications environment of a user U1 comprises a cellular telephone T1 and ... Read More
Inventors: Titmuss, Richard John; Winter, Christopher Simon;, Assignee: British Telecommunications public limited company (London, GB) |
Light emitting semiconductor diode
As is shown in FIG. 1, two semiconductor layers 39, 40 are formed on a semiconductor substrate 43 using conventional semiconductor technology. The first layer 39, of n conductivity type GaAs doped wi... Read More
Inventors: Mori, Mitsuhiro; Ito, Kazuhiro; Morioka, Makoto; Ono, Yuichi;, Assignee: Hitachi, Ltd. (JA) |
Apparatus for photoelectrically reading a translucent answer document having a bias bar printed thereon
I claim: 1. In combination, an answer document having a bias bar and various response areas printed thereon, both said bias bar and response areas being printed with ink possessing the same optical ch... Read More
Inventors: Thibodeau, James;, Assignee: National Computer Systems, Inc. (Minneapolis, MN) |
Apparatus for displaying numerical value information in alternative forms
Briefly stated, the present invention comprises an apparatus for displaying numerical value information, comprising: display means capable of displaying multi-digit numerical value information by firs... Read More
Inventors: Kitajima, Kenichi; Nagano, Akira; Urasaki, Kazuaki;, Assignee: Omron Tateisi Electronics Co. (JP) |
Chunky planar data packing apparatus and method for a video memory
An apparatus and method for taking data that is presented on a 32-bit bus (e.g., NUBUS) in one format and writing it into a video memory in chunky planar format, is described. The present invention is... Read More
Inventors: Lundblad, James A.; Sriti, Mohammed; Masterson, Anthony D.;, Assignee: Apple Computer, Inc. (Cupertino, CA) |
Low dissipation voltage regulator
OF PREFERRED EMBODIMENTS Referring now to the schematic diagram of the voltage regulator shown in FIGURE, input terminals 10 and 11 are connected to a source of unregulated supply voltage. Such a vol... Read More
Inventors: Huntley, Christopher Ryland;, Assignee: GTE Lenkurt Electric (Canada) Ltd. (Burnaby, CA) |
NPN band gap voltage reference
OF THE PREFERRED EMBODIMENT Turning to the sole FIGURE, NPN bandgap voltage reference circuit 10 is illustrated as comprising operational amplifier 12 and bandgap cell 14. Bandgap cell 14 is generall... Read More
Inventors: Price, Jr., John J.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
High dynamic range mixer
OF THE PRESENT INVENTION A schematic diagram 50 of FIG. 1 showing one embodiment of the doubly-balanced mixer according to the present invention, comprises a transformer 60 having three windings 62, ... Read More
Inventors: Jaffer, Aubrey;, Assignee: |
Matrix circuit of FM stereo multiplex demodulation circuit
An object of this invention is to provide a matrix circuit of an FM-stereo multiplex demodulation circuit in which an FM-demodulated composite signal can be supplied to a switching decoder by shunting... Read More
Inventors: Itoh, Masashi;, Assignee: Kabushiki Kaisha Toshiba (JP) |
Amplifier circuit having high linearity for cancelling third order harmonic distortion
An amplifier is an element common to many analog circuits. For example, amplifiers are used in analog mixers, filters, multipliers, and oscillators. An input signal is applied to an amplifier and amp... Read More
Inventors: Main, W. Eric; Durec, Jeffrey C.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Device and method for controlling frequency characteristic of a filter
It is therefore an object of the present invention to provide a receiver capable of insuring a stable frequency characteristic and desirable receipt frequency despite any frequency offset ascribable t... Read More
Inventors: Yoshioka, Kenji;, Assignee: NEC Corporation (Tokyo, JP) |
Radio communication network and method for unobstrusive call interception via data duplication
OF THE DRAWINGS FIG. 2 shows a schematic representation of digital, cellular communication network 30. In the preferred embodiment, network 30 includes satellites (SVs) 32, gateways 34, and subscribe... Read More
Inventors: Armbruster, Peter Joseph; Wild, Johanna Alexandra; Heuvel, Dean Paul Vanden; Blanchard, Scott David;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Memory timing and control apparatus
The above and other objects and advantages of the present invention are achieved in a preferred embodiment of the present invention in which one, two or more rows of memory chips are contained on a me... Read More
Inventors: Fisher, Edwin P.; Schuberth, Ralph G.;, Assignee: Honeywell Information Systems Inc. (Waltham, MA) |
Multiple frequency communication device
The present invention encompasses a multiple band radio that can transmit and receive multiple frequency signals simultaneously. The radio has a transmit path and a receive path. The transmit path is ... Read More
Inventors: Kornfeld, Richard K.; Wheatley, III, Charles E.;, Assignee: QUALCOMM Incorporated (San Diego, CA) |
Spread spectrum transmitter, spread spectrum receiver, and spread spectrum communications system
It is an object of the present invention to provide a spread spectrum transmitter, a spread spectrum receiver, and a spread spectrum communications system which can simplify the configuration of a rec... Read More
Inventors: Shiino, Haruhiro;, Assignee: Oki Electric Industry Co., Inc. (Tokyo, JP) |
Intelligent copy and paste operations for application handling units, preferably handsets
In accordance with the invention there is provided a method of transferring data from one application to another in an application handling unit controlling a plurality of applications, said transfer ... Read More
Inventors: Kraft, Christian A;, Assignee: Nokia Mobile Phones Limited (Espoo, FI) |
Network terminating terminal apparatus for integrated services digital network
According to the present invention, network terminating terminal apparatus, for an integrated services digital network, comprises: a U-interface (412) for connection to the network and a U-transceiver... Read More
Inventors: Sparks, Thomas C.;, Assignee: Northern Telecom Limited (Montreal, CA) |
System and method for telephone network testing
To overcome the limitations in the prior art described above, and to overcome other limitations that will become apparent upon reading and understanding the present specification, the present inventio... Read More
Inventors: Dresser, Stephen A.;, Assignee: Pacific Bell (San Francisco, CA) |
Anthropomorphic mammography and lung phantoms
The present invention comprises anthropomorphic phantoms for use in conjunction with mammography and lung x-ray applications. The anthropomorphic phantoms of the present invention address the above de... Read More
Inventors: Nelson, Robert S.; Zach, Reuven D.;, Assignee: |
Symbol reader using differentiating circuit for light beam focusing
An object of the present invention is to provide an optical device which accurately reads symbols over a broad read range without increasing its cost and complexity over known devices. To achieve this... Read More
Inventors: Takenaka, Shinya;, Assignee: Sumitomo Electric Industries, Ltd. (Osaka, JP) |
Radio-diagnostic equipment with shutter
In accordance with the principles of the invention the device which regulates the position of the individual lamellae of the shutter has spring elements which by physical means can be deflected from a... Read More
Inventors: Sklebitz, Hartmut;, Assignee: Siemens Aktiengesellschaft (Berlin and Munich, DE) |
Flash-erase-type nonvolatile semiconductor storage device
An object of the present invention is to provide an efficient redundant architecture for a flash-erase-type nonvolatile semiconductor storage device, and a method capable of improving the efficiency o... Read More
Inventors: Niijima, Hideto; Toyooka, Takashi; Satoh, Akashi; Sakaue, Yoshinori;, Assignee: International Business Machines Corporation (Armonk, NY) |
Telephone ringing extender
In the drawing, a subscriber telephone loop shown as ring conductor 10 and tip conductor 11 is connected from the central office to the left of the drawing to the telephone subscriber telephone sets ... Read More
Inventors: Holtz, Roger E.; Tilson, Bernard A.; Woods, Gordon D.;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Speakerphone test set
This and other needs are met by the present invention which provides a telephone test set having means for performing dry loop testing of telephone lines, a passive speech network coupled to the means... Read More
Inventors: Parker, Geoffrey H.; Hefley, Andrew J.;, Assignee: Harris Corporation (Melbourne, FL) |
Laser diode system
OF AN ILLUSTRATIVE EMBODIMENT OF THIS INVENTION FIG. 1 shows a laser bar 10 with, illustratively, three emitting surfaces, or facets, 12, 14, and 16. The facets are coupled to optical fibers 18, 20, ... Read More
Inventors: Ruda, Mitchell C.; Stuhlinger, Tilman W.; Caffey, David Pace;, Assignee: Opto Power Corp. (Tucson, AZ) |
Digital time division multiplex telecommunication network
In accordance with the invention, the foregoing and other objects are achieved in that the TDM highway forms for the supply of remote groups of subscriber terminals branch loops from a main route. The... Read More
Inventors: Mattern, Alfred;, Assignee: Siemens Aktiengesellschaft (Munich, DE) |
Mobile station apparatus used in CDMA cellular radio system and spread code synchronization method therefor
It is an object of the present invention to provide a mobile station apparatus which is used in a CDMA cellular radio system and can shorten the time required to capture a base station of a desired mo... Read More
Inventors: Nakamura, Ken; Obayashi, Arata;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Method of allocating carrier frequencies for simultaneous transmission of a plurality of modulated signals especially on an optical link
An object of the invention is to solve problems associated with generation of composite beat frequencies, especially second order beat frequencies, equal to the sum or the difference of two carrier fr... Read More
Inventors: Adnet, Lionel;, Assignee: Alcatel Cit (Paris, FR) |
Cell Phones 
