| Patent Number |
Title Of Patent |
Date Issued |
| 5351284 |
Antenna for a base unit of a cordless telephone system |
September 27, 1994 |
| A base unit antenna for a cordless telephone system where the cordless telephone system comprises a base unit coupled via wires contained in a telephone cord to a telephone distribution system and a handset coupled to the base unit by a duplex radio communication link. The base unit incl |
| 4881259 |
Answering machine with cordless telephone |
November 14, 1989 |
| A cordless telephone and an answering machine of the remote-pickup type are provided as an integrated unit having the answering machine and telephone base unit integrated into a common housing. The remote handset contains circuitry for generating a command signal condition at the user's |
| 4876709 |
Antenna for cordless telephone system |
October 24, 1989 |
| An antenna internally contained within a housing of a cordless telephone is configured generally as a plate disposed opposite the earphone transducer, and away from the user's face in position for normal use. The antenna is disposed to lie generally vertically, and is counterpoised again |
| 4577072 |
Telephone equipment tester |
March 18, 1986 |
| A tester for telephones and telephone answering systems features a dialing test capability for high speed dialing systems by providing the dialed digits in a single display element serially in time at a delayed rate set by strobing the digits from a memory storage element. A two-level ri |
| 4439688 |
Electrical control apparatus |
March 27, 1984 |
| An electrical controller, such as a controller timer for a home lighting circut, is connected so that a power switch like a triac controlled thereby replaces a conventional toggle switch operating in conjunction with another toggle switch in series therewith which can operate the con |
| 4379245 |
Manually operable rotary pulse generating apparatus for pulse counting and similar applications |
April 5, 1983 |
| A manually operable pulse generating apparatus comprises a dial knob assembly having a outer grippable knob member rotatably mounted around an inner knob member connected to an operating shaft carrying a ratchet wheel-forming cam having saw-toothed ratchet teeth-forming lobes. Each l |
| 4360739 |
Wall switch opening mounted power circuit timer-controller |
November 23, 1982 |
| The controller comprises a rear sub-assembly to be mounted in a conventional toggle wall switch opening, a conventional toggle switch cover plate with a vertical toggle switch operating arm-receiving slot, the plate to extend over the rear sub-assembly and being of a size to overlap |
| 4354120 |
Daily variability timer |
October 12, 1982 |
| An electrical timer automatically actuates an output electrical load device such as an electric light according to a program stored as markers in a memory unit over a 24-hour interval, whereupon the program is recycled. By actuating one or more electric lights within an empty dwelling, a |
| 4349748 |
Timer and power control system |
September 14, 1982 |
| A timer system includes a power switch operable to power circuit closing and opening conditions, timing means for identifying various timing segments over a 24-hour period and marker storage means having respective power turn on and off marker storage locations assigned to the time i |
| 4344000 |
Power circuit control programmable timer |
August 10, 1982 |
| One form of the timer is designed to be mounted over and behind a conventional wall switch cover plate and includes a two position timer condition-setting arm, a rotatable and depressible time setting dial knob and an indicator on the front of the cover plate. When the arm is moved to |
| 4135153 |
Circuit for testing high frequency current amplifying capability of bipolar transistors |
January 16, 1979 |
| A transistor test circuit provides for the selection of preferably three widely differing test frequencies for testing transistors normally having respectively relatively small, intermediate and large frequency gain-bandwidth product characteristics. These test frequencies are each m |
| 4131846 |
Meter control circuit |
December 26, 1978 |
| In combination with a meter movement having a pointer movable over a variable value indicating scale having numbered variable value indicating marks forming respective scale segments having substantially different compression or expansion ratios and representing progressively increasing |
| 4117400 |
Circuit for testing transistors or the like |
September 26, 1978 |
| The circuit includes sources of periodic, low duty cycle, load terminal energizing and control terminal driving pulse waveforms. During each cycle, the waveforms occur only during successive test intervals occupying only a small portion of each cycle. During each test interval a load |
| 4030088 |
Vehicle proximity sensing and control system |
June 14, 1977 |
| A position detecting and control system for a vehicle includes a low frequency transmitter and associated antenna and a receiver and associated antenna, one of the antennas being mounted on the vehicle so the distance between the antenna carried by the vehicle and the other antenna is |
| 4015253 |
Rotary digital channel selection apparatus |
March 29, 1977 |
| A combination control knob and encoder drum unit, which has a number of indexing indentations corresponding to the number of desired stable positions thereof, is sized to pass through an opening in a control panel behind which is mounted a drum-receiving housing. The drum has groups of |
| 3997223 |
Apparatus and method for rejuvenating cathode ray tubes |
December 14, 1976 |
| The cathode material of a black and white or color cathode ray tube is rejuvenated by apparatus and a method which initially supplies heater voltage to the heater filament prior to the application of a source of positive voltage between the control grid and the cathode, to pre-heat the |
| 3984862 |
Television receiver response indicating apparatus |
October 5, 1976 |
| The overall response of a television receiver is displayed on the face of the cathode ray tube of the receiver involved by test apparatus which requires electrical connection only to the antenna terminals of the television receiver and the mounting of a small light sensor unit onto the |
| 3961242 |
Emission testing circuit for color cathode ray tubes |
June 1, 1976 |
| The emission of the various electron guns of a color cathode ray tube are measured and indicated preferably by a time sharing multiplexing technique where bright intensity producing emission generating voltages are fed between th cathode and control or accelerator electrodes of the vario |
| 3961241 |
Emission testing circuit for color cathode ray tubes |
June 1, 1976 |
| The emission of the various electron guns of a color cathode ray tube are measured and indicated by a time sharing multiplexing technique where emission generating voltages are fed to the electrodes of the various electron guns in rapidly repeated sequence and the degree of emission |
