Added main line apparatus
In keeping with the invention, a ring generator portion of the added main line apparatus is disclosed with particular utility in connection with equipment for providing the services of two telephone l... Read More
Inventors: Fry, James L.; Martin, Larry; Johnston, Robert B.;, Assignee: Light Logic, Ltd. (San Rafael, CA) |
Variable pulse width precision pulse generator
What is claimed is: 1. A variable pulse width precision pulse generator comprising: a constant current source means for producing a number of different constant currents; a charge storage device, resp... Read More
Inventors: McMorrow, Jr., Richard H.; Weedon, Hans; Dolazza, Enrico;, Assignee: Analogic Corporation (Peabody, MA) |
Bipolar flip-flop circuit with improved noise immunity
It is an object of the present invention to solve the above problem. More specifically, it is an object of the present invention to provide a semiconductor integrated circuit that prevents or suppress... Read More
Inventors: Nakano, Toshiya;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Protective facial mask
OF THE PREFERRED EMBODIMENT In reference to the drawing, FIG. 1 is an isometric view of the protective facial mask 10 of the present invention. The mask 10 slips over a user's head and covers both th... Read More
Inventors: Bishop, Dolores; Morris, Mark M.;, Assignee: |
On-board ring signal generator
OF THE PREFERRED EMBODIMENTS FIG. 3 shows a ring generator circuit 20 according to the invention incorporated in a line card 22 as part of a subscriber line interface circuit (SLIC). FIG. 3 also show... Read More
Inventors: Chen, Herbert M. K.;, Assignee: Advanced Micro Devices, Inc. (Sunnyvale, CA) |
Switching power supply with input voltage reduction detection
In view of the aforesaid conventional problem, an object of the present invention is to provide a switching power supply which is able to prevent the breakage of an element at the time of the reductio... Read More
Inventors: Ogawa, Takahiro;, Assignee: Funai Electric Co., Ltd. (Osaka, JP) |
Power supply apparatus
What is claimed is: 1. A power supply apparatus comprising: a switching means for relaying electrical current to be supplied to a transformer and a digital signal processor (DSP) means for controlling... Read More
Inventors: Shin, Nakagawa;, Assignee: Fidelix Y.K. (Tokyo, JP) |
Device for operating inverter and power system
What is claimed: 1. A device for operating inverters comprising: a plurality of inverters connected in parallel to a DC source, means for determining the number of inverters to be operated on a basis ... Read More
Inventors: Hagihara, Ryuzo; Uchihashi, Kenji; Ishida, Takeo;, Assignee: Sanyo Electric Co., Ltd. (Moriguchi, JP) |
Telephone solid state ringer
In summation, this invention comprises a solid state ringer which utilizes a unijunction transistor for purposes of effectuating the ringing action thereof. More particularly, this invention comprises... Read More
Inventors: Phelps, Robert J.;, Assignee: Telephonic Equipment Corporation (Santa Ana, CA) |
DTMF receiver sense and control arrangement
In a telecommunications switching system which has a network clock, a DTMF receiver arrangement is connected to a number of DTMF receivers. These DTMF receivers interface between customers and the swi... Read More
Inventors: Jones, Jr., Leo V.; Walsh, A. Lee;, Assignee: GTE Communication Systems Corporation (Phoenix, AZ) |
Modular architecture for fast-packet network
I claim: 1. A communication system for transferring information between a plurality of transmitting data terminals and receiving data terminals, comprising: receiving interface means responsive to sai... Read More
Inventors: Thor, Allen;, Assignee: Advanced Micro Devices, Inc. (Sunnyvale, CA) |
Communication network
A communication network is provided for transmitting data. The network includes a master controller, a slave control, and a data path. Means are provided for transformer coupling the master controller... Read More
Inventors: Harris, John;, Assignee: General Instrument Corporation (New York, NY) |
Mobile communication system and a method of mobile communication
In view of the above, the present invention solves such problems, and provides a mobile communication system which is capable of changing over to an optimum base station in a minimal of communication ... Read More
Inventors: Ueda, Tetsuro;, Assignee: NEC Corporation (Tokyo, JP) |
Test set
Wherefore, having thus described my invention, I claim: 1. In telephone cables having a pair of electrical conductors designated as Tip and Ring interconnecting powered equipment at one location with ... Read More
Inventors: Simmonds, James F.;, Assignee: Perkins Research & Manufacturing Co., Inc. (Canoga Park, CA) |
Method and apparatus for remote control and synchronization allowing for simultaneous remote collaboration
The present invention is directed to a method and apparatus for simultaneous remote synchronization and control of audio and video equipment between two or more interconnected studios using a digitize... Read More
Inventors: Hendrickson, Andrew D.;, Assignee: LucasArts Entertainment Company (Nicasio, CA) |
Telephone to stereo amplifier interface coupling
Due to the large speakers and high power of modern stereo amplifiers the disclosed device will surpass the performance of most commercially available speakerphones. The primary objective, however, is ... Read More
Inventors: Harmeyer, Michael;, Assignee: |
Continuous radio announcer
It is one of the main objects of the present invention to provide a reliable and volumetrically efficient continuous radio announcer that is capable of storing a sound message digitally. It is another... Read More
Inventors: Fernandez, Robert; Sanchelima, Jesus;, Assignee: F.M.R. Devices, Inc. (Hialeak Gardens, FL) |
Congestion control system for telecommunications
What is claimed is: 1. In a telecommunications network having a plurality of switching offices interconnected by trunks and connected to a central processor for periodically exchanging data, with the ... Read More
Inventors: Langlois, Francis; Caron, France; Regnier, Jean M.;, Assignee: Northern Telecom Limited (Montreal, CA) |
User interface for personal telecommunication devices
This invention overcomes the heretofore discussed limitations by providing an ergonomic user interface for a personal communication device comprising a first base member having an inner surface, an ou... Read More
Inventors: Macor, James Joseph;, Assignee: Lucent Technologies Inc. (Murray Hill, NJ) |
Quaternary signal encoding
What is claimed is: 1. Apparatus comprising at least one quaternary signal input and an input decoder for determining whether a quaternary encoded signal at said signal input is a high impedance high ... Read More
Inventors: Garnett, Paul Jeffrey;, Assignee: Sun Microsystems, Inc. (Mountain View, CA) |
Infinity image display having increased vertical field of view
The present invention provides a surprisingly simple, yet elegant, solution to this problem. According to the instant invention, the field of view from a standard mirror-beamsplitter infinity image di... Read More
Inventors: Mecklenborg, Richard A.;, Assignee: The Singer Company (Binghamton, NY) |
Image display apparatus
In view of the above-described problems of the background art, an object of the present invention is to provide a compact wide-view angle image display apparatus which displays a more advantageous ima... Read More
Inventors: Yasugaki, Masato;, Assignee: Olympus Optical Co., Ltd. (Tokyo, JP) |
Retro-reflector based private viewing system
According to one aspect of the invention, a viewing system includes a focusing means, and conjugate optics, including a retro-reflector and a beamsplitter, and folding means for folding the optical pa... Read More
Inventors: Fergason, James L.;, Assignee: |
Thin film mirror frame
The present invention is directed to a frame used to support a thin mirrored film. The frame has a front surface which includes a peripheral supporting ridge and an adhering surface. The adhering surf... Read More
Inventors: Martinez, Sr., Eugene Eustaquio;, Assignee: |
Metering signal level control circuit
The present invention is related to an apparatus for controlling a first parameter of a metering signal in a communication system. The communication system includes a transmit path, a receive path, an... Read More
Inventors: Zhou, Yan; Miller, Merle L.; Nair, V. Vijayakumaran; Ramirez, Sergio;, Assignee: Advanced Micro Devices (DE) |
System and method for off-line notifying a network user
It is thus a major object of the present invention to overcome the above listed and other disadvantages of the conventional systems and provide a method and a system for off-line indicating to the sub... Read More
Inventors: Yariv, Eran;, Assignee: NetGong Ltd (Nesher, IL) |
Method for providing caller directive announcements in a personal communication system
Prior art PCS systems provide certain limited audio messages to be played to a caller in response to predetermined conditions. However, such systems do not allow specific caller directive announcement... Read More
Inventors: Kapsales, Peter;, Assignee: AT&T Corp (Middletown, NJ) |
Caller discrimination within a telephone system
In accordance with the preferred embodiment of the present invention, a method is provided for distinguishing between callers. The method is accomplished by storing a pass code for a first telephone w... Read More
Inventors: Khalid, Zafar M.; Beyda, William J.; Thomas, Jay;, Assignee: Siemens Business Communication Systems, Inc. (Santa Clara, CA) |
Self-contained electronic telephone ring recorder and method for eliminating errors
1. Purposes of the Invention It is an object of the present invention to provide a telephone call recorder using the voice control technique and transforming successive sounds in digits displayed on a... Read More
Inventors: Dziulko, Adolphe Richard; Dziulko, Andre;, Assignee: |
FM receiver and communication systems including same
One object of the present invention is to provide an FM receiver which requires substantially less energy than the conventional FM receiver. Another object of the invention is to provide an FM receive... Read More
Inventors: Leibman, Vadim;, Assignee: AVR Communications Ltd. (Haifa, IL) |
Ring Tones 
