Alarm system responsive to intrusion induced phase unbalance
I claim: 1. In an alarm system, the combination that comprises: (a) first means to be placed in a room and to (i) transmit ultrasonic wave signals that rebound off the room's walls and contents, and (... Read More
Inventors: Idland, Carsten H.;, Assignee: |
Visible image magnetic card
What is claimed is: 1. A visible image magnetic card comprising; a magnetic recording sheet comprising a magnetic recording layer and a base sheet, a display sheet having a transparent display area, a... Read More
Inventors: Murata, Yasuzo; Yokoyama, Takeo; Wada, Hiroyuki; Sakurai, Masaaki;, Assignee: Pilot Man-Nen-Hitsu Kabushiki Kaisha (both of, JP); The Nippon Signal Co., Ltd. (both of, JP) |
Bar gauge plotting and display system
A main object of this invention is to provide an improved electro-optical gaging method and system. One other object of this invention is to provide an improved electro-optical gaging method and syste... Read More
Inventors: Yerkes, Ronald W.; Hoffner, Joel L.; Galanis, Tom L.; Hostetter, Jr., Richard S.;, Assignee: Bethlehem Steel Corporation (Bethlehem, PA) |
Security alarm system
What is claimed is: 1. A security alarm system comprising a plurality of alarm conductors each wired to corresponding premises, a sequential scanning circuit coupled to said alarm conductors for seque... Read More
Inventors: Horn, Barry N.; Swain, Richard S.; Rice, Richard C.;, Assignee: Horn; Barry N. (Milwaukee, WI) |
Control data input device for the electronic control unit of an electrical household appliance
It is an object of the present invention to provide a control unit for an electrical appliance which does not require pushbuttons to enter control information. It is another object of this invention t... Read More
Inventors: Schmidt, Ulrich; Fischer, Klaus;, Assignee: Licentia Patent-Verwaltungs-G.m.b.H (Frankfurt am Main, DE) |
Digitally controlled intercommunications system
It is claimed: 1. An intercommunications system for the selective establishment of two-way communications between a multiplicity of stations, said intercommunications system comprising: a terminal loc... Read More
Inventors: Phillips, deceased, Martin J.; Phillips, executrix, by Margaret J.;, Assignee: |
Time limited data communication system
It is therefore a primary object of the present invention to provide an improved, time limited data communication system which allows the operator to transmit data with ease even if the data to be tra... Read More
Inventors: Takahashi, Shuichi;, Assignee: Ricoh Company, Ltd. (Tokyo, JP) |
Gradient optical fiber
I claim: 1. A gradient optical fiber with an optimized index of refraction profile with the improvement being a normalized difference in the index of refraction.DELTA.being in a range of 0.005 to 0.01... Read More
Inventors: Geckeler, Siegfried;, Assignee: Siemens Aktiengesellschaft (Berlin & Munich, DE) |
Acousto-optic guided-light beam device
What is claimed is: 1. An acousto-optic light deflector comprising, in combination a substrate having an optical waveguide formed along one boundary surface thereof; means for coupling a light beam in... Read More
Inventors: Tsai, Chen S.;, Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC) |
Optical signal communicating apparatus
What is claimed is: 1. Apparatus for coupling data between first and second members undergoing relative rotation about an axis of relative rotation, said apparatus comprising at least one light-emitti... Read More
Inventors: Tarasevich, Andrew;, Assignee: Lockheed Electronics Co., Inc. (Plainfield, NJ) |
Large relative aperture objective
The present invention is directed particularly toward the prevention of the loss in aberration correction due to the change of the image magnification by making part of the lens system able to float. ... Read More
Inventors: Kato, Masatake; Hashimoto, Shigeru;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Apparatus for extending and setting rolled sensitive films
It is an object of the invention is to provide an apparatus for extending and setting rolled films, the apparatus comprising a film feeder, a vacuum film holder and a mechanism adapted to move the fil... Read More
Inventors: Tanabe, Kenjiro;, Assignee: Dainippon Screen Mfg. Co., Ltd. (Kyoto, JP) |
Wet modular film printer
Accordingly, it is an object of the present invention to provide a film printer that overcomes any of the disadvantages of the prior art film printers. It is another object of the present invention to... Read More
Inventors: Hrastnik, Walter;, Assignee: Bell & Howell Company (Chicago, IL) |
Hand-held instrument for inspecting drill bits
What is claimed is: 1. A hand-held instrument for inspecting a drill bit, comprising: a stand of transparent material, microscope means mounted on the stand, and means forming a socket in the stand fo... Read More
Inventors: Clark, Gary R.;, Assignee: |
Device for arraying the ends of optical fibers spaced out around an axially symmetrical structure
What I claim is: 1. A device for arraying the ends of optical fibers spaced out around an axially symmetrical structure, said device comprising a dividing member having openings through each of which ... Read More
Inventors: Delebecque, Robert P.;, Assignee: Societe Anonyme De Telecommunications (Paris, FR); Societe Industrielle De Liaisons Electriques (Paris, FR) |
Optical fibre ribbon structure
What I claim as my invention is: 1. In an optical fibre ribbon structure comprising a tape of plastics material and a plurality of optical fibres arranged side by side and extending lengthwise on and ... Read More
Inventors: Driskel, Stephen P.;, Assignee: BICC Public Limited Company (London, GB2) |
Optical detection of radial reflective defects
The present invention is directed to a method and apparatus for inspecting a translucent container to detect a radial reflective defect in the container and for rejecting the container in response to ... Read More
Inventors: Lovalenti, Sam;, Assignee: Owens-Illinois, Inc. (Toledo, OH) |
High frequency amplifier with frequency conversion
A high frequency amplifier of this invention comprises an amplifying circuit and an emitter follower which makes the output impedance of the amplifying circuit low. An impedance matching network consi... Read More
Inventors: Watanabe, Seiichi; Yoshikawa, Takashi;, Assignee: Sony Corporation (Tokyo, JA) |
Telephone handset cover
We claim: 1. A telephone handset cover comprising: (a) a grip cover comprised of an impact energy absorbing material for covering the handgrip portion of a telephone handset; (b) two endcovers connect... Read More
Inventors: Dale, George L.; Brown, Robert E.;, Assignee: Dale; George L. (Lacey, WA) |
Television channel indicator
What is claimed is: 1. An indicator for a heterodyne receiver arranged to selectively receive a plurality of electromagnetic signals at frequencies respectively designated by numbers which are proport... Read More
Inventors: Yoshisato, Akiyuki;, Assignee: Alps Electric Co., Ltd. (Tokyo, JA) |
Fully interconnected spot beam satellite communication system
The system of the present invention relates to a satellite communications system in which an earth station in any one spot beam coverage area can communicate to an earth station in the same or any oth... Read More
Inventors: Whitehead, Clay T.;, Assignee: National Exchange, Inc. (McLean, VA) |
Video signal scrambling system
It is an object of the present invention to provide a video signal scrambling system which can realize a low-cost circuit arrangement. It is another object of the present invention to provide a video ... Read More
Inventors: Uehara, Shouji;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
AC to DC converter system with ripple feedback circuit
In accordance with the present invention, there is provided a ripple feedback circuit for use with a current-sourced rectifier system with a resonant load balancing filter. The ripple feedback circuit... Read More
Inventors: King, Roger J.;, Assignee: The University of Toledo (Toledo, OH) |
Common control constant shift reframe circuit
Accordingly, the primary object of the present invention is to continually maintain each of a plurality of time division multiplexed digital data groups in frame synchronization. A related object of t... Read More
Inventors: Colton, John Robert; Heick, Robert Bruce; Mann, Henry;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Automatic telephone call computer and display
OF THE DRAWINGS A. MODE SELECTION Referring now to FIG. 1, we see a schematic of a circuit diagram for a circuit which operates a unit for monitoring and displaying the cost of telephone calls constr... Read More
Inventors: Samuels, Ira; Barzman, Sidney;, Assignee: Beacon Computer Corp. (Metuchen, NJ) |
Subscriber's line equipment for a telephone exchange
OF THE PREFERRED EMBODIMENT In the drawing, the subscriber's line is indicated by its two terminals 1 and 2 which are connected to the outputs 4, 5 respectively of a voltage-doubling and rectifying m... Read More
Inventors: Picandet, Jean A.; Baratin, Andre N.;, Assignee: Jeumont-Schneider (Puteaux, FR) |
Circuit for obtaining accurate timing information from received signal
The object of the present invention is to provide a circuit for obtaining accurate timing information from a received signal, which is not so affected by residual distortion after equalization, noise,... Read More
Inventors: Ohta, Shinji; Fukuda, Misao; Tsuda, Toshitaka;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Channel data transmission system
OF THE PREFERRED EMBODIMENTS The transmitter 30 as shown in FIG. 1 is connected to the receiver 60 by two channels 40 and 50. The two channels 40 and 50 may comprise two separate transmission links, ... Read More
Inventors: Wahl, Hans-Dieter;, Assignee: U.S. Philips Corporation (New York, NY) |
Mobile terminal equipment
Objects of the Invention A first object of the present invention is to provide a mobile terminal equipment which is capable, even if moved to a geographical area differing in standard time, of automat... Read More
Inventors: Ishii, Junichi; Matsukawa, Takanari;, Assignee: NEC Corporation (Tokyo, JP) |
Real time clock
According to a first aspect of the present invention, there is provided a real-time clock arranged to generate output signals indicative of time of day, comprising an oscillating device arranged to pr... Read More
Inventors: Frampton, Simon;, Assignee: Nokia Mobile Phones Limited (Salo, FI) |
Caller ID 
