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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
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| Number | Title | Issue Date |
| 7792191 | Device and method for performing half-pixel accuracy fast search in video coding A half-pixel accuracy fast search algorithm in video coding performs a hierarchical search method for motion estimation, which initially searches integer accuracy motion vector and then continues its search sub-pixel accuracy over surrounding reconstructed sub-pixel... | 09/07/2010 |
| 4780692 | Cableless switching element for waveguide having low loss and fast switching speed An improved switching arrangement 10 for waveguide is disclosed which comprises, in combination, a coaxial switch 12 and a unified, multi-port, waveguide interface 14. The coaxial switch 12 has coaxial connectors of a first type (12a, 12b, 12c) mounted in... | 10/25/1988 |
| 4736432 | Electronic siren audio notch filter for transmitters A notch filter as disclosed which is adaptable to notching out a background siren from voice communications from an emergency vehicle. Two embodiments are disclosed. In the first embodiment, a frequency lock loop tracks the fundamental frequency of an ele... | 04/05/1988 |
| 4713553 | Fast power-fail detector for power supplies with energy hysteresis A system for rapidly detecting power disturbances with ferroresonant transformers having a decay profile comprising the steps of rectifying a power signal; comparing the rectified signal against a reference signal; comparing the rectified signal against a... | 12/15/1987 |
| 4700473 | Method of making an ultra high density pad array chip carrier An ultra high density pad array chip carrier is disclosed which includes a ceramic substrate having a plurality of electrical conductors each of which connect to a respective through-hole plugged with solder on its bottom surface. These solder plugs form ... | 10/20/1987 |
| 4696051 | Simulcast transmission system having automtic synchronization An improved simulcast transmission system having automatic synchronization is disclosed which utilizes a signal from any one of a number of readily available master timing sources to maintain a constant, uniform time delay to a multiplicity of transmitter... | 09/22/1987 |
| 4684941 | Method of communications between register-modelled radio devices A register-modelled radio system comprising a plurality of register-modelled processors having addressable registers for modelling the virtual state of the processor; a serial bus, interconnecting the register-modelled processors for communicating between... | 08/04/1987 |
| 4658223 | High speed method of determining temperature compensation component values A method within adjusting values of a passive temperature compensation network for use in an oscillator includes the steps of determining the frequency variation of the oscillator from nominal over a specified temperature range, determining the maximum fr... | 04/14/1987 |
| 4646326 | QAM modulator circuit A method and means for quadrature amplitude modulation is described. The improved QAM modulator circuit utilizes a small read only memory to hold multiple versions of a signal constellation resulting in the elimination of hardware modulator circuits. In a... | 02/24/1987 |
| 4641222 | Mounting system for stress relief in surface mounted components An improved mounting system for surface mounted components is described. The mounting system of the present invention provides preparations for surface mounted components and the printed circuit substrate which render the resultant assembly highly resista... | 02/03/1987 |
| 4637065 | Broadband solid state antenna switch In accordance with the present invention there is provided a common antenna signal path selectively coupled to a plurality of signal energy paths, including transmitter and receiver paths. The transmitter and receiver paths are selectively coupled to the ... | 01/13/1987 |
| 4637022 | Internally register-modelled, serially-bussed radio system In accordance with the present invention, there is provided a register-modelled radio system comprising a plurality of register-modelled processors having addressable registers for modelling the virtual state of the processor; a serial bus, interconnectin... | 01/13/1987 |
| 4631496 | Battery saving system for a frequency synthesizer A frequency synthesized transceiver capable of tuning to a plurality of communication channels is disclosed. The transceiver includes a receiver and a transmitter section which are coupled to the synthesizer which generates the appropriate injection signa... | 12/23/1986 |
| 4631737 | Self biasing direct coupled data limiter An interface circuit is coupled between the last stage of an FSK receiver and a limiter to provide a biasing voltage signal to the limiter. The receiver includes a power saver circuit which supplies power on an interrupted basis. The interface circuit con... | 12/23/1986 |
| 4630263 | Time-division multiplex communications control system Method and apparatus are provided for bi-directional audio and data communications enabling a time-division multiplex control center system and distributed system intelligence enabling efficiency and reliability.... | 12/16/1986 |
| 4630035 | Alarm system having alarm transmitter indentification codes and acoustic ranging An alarm system for sensing an alarm condition within a relevant alarm area includes one or more portable alarm units for sensing an alarm condition. Each alarm unit includes a radio frequency transmitter for identifying the alarm unit and a secondary, au... | 12/16/1986 |
| 4628272 | Tuned inductorless active phase shift demodulator An inductorless quadrature demodulator for frequency modulated signals is disclosed. A limited FM signal is passed through an active filter (26) and a phase shift network (30) to produce a quadrature signal. The limited FM signal is compared with the quad... | 12/09/1986 |
| 4628478 | Remote data controller for a communication system The communications system may include wireless two-way communications equipment having selectable functions and various operational features. Control modules each include mechanisms for providing indicia representative of the status of the features of the... | 12/09/1986 |
| 4626802 | GaAs FET oscillator noise reduction circuit A method and means for reducing noise in a GaAs FET oscillator circuit is described. The circuit of the present invention achieves low noise oscillator operation by driving the gate input of the GaAs FET oscillator circuit with a source of voltage which e... | 12/02/1986 |
| 4619002 | Self-calibrating signal strength detector A self-calibrating signal strength detector is described. The present invention utilizes a relatively narrow dynamic range receiver sensitivity threshold indicator circuit to calibrate the output signal of a relatively wide dynamic range signal strength d... | 10/21/1986 |
| 4618941 | Apparatus and method for generating filtered multilevel data from NRZ data An embodiment of the invention includes a binary linear phase response filter having a plurality of weighted outputs and a summing circuit which sums groups of the weighted outputs. A polarity inverting mechanism is provided for selectively changing the p... | 10/21/1986 |
| 4618836 | Wide band dielectric resonator oscillator having temperature compensation A improved microwave dielectric oscillator module which is provided with a removable temperature compensated dielectric resonator channel element is described. The removable temperature compensated dielectric resonator channel element cooperates with an e... | 10/21/1986 |
| 4617520 | Digital lock detector for a phase-locked loop A digital lock detector for a phase-locked loop accumulates out-of-lock pulses which are derived from a high frequency clock signal. The out-of-lock pulses are gated by an out-of-phase indicator signal and a pulse centered around the phase-locked loop out... | 10/14/1986 |
| 4612415 | Dynamic control of telephone traffic in a trunked radio system A method and means for controlling telephone interconnect traffic on a trunked radio system is described. The present invention continuously monitors all types of communication traffic on the system and in response to an increasing dispatch access delay, ... | 09/16/1986 |
| 4609892 | Stripline filter apparatus and method of making the same An improved ceramic stripline filter assembly is disclosed which provides optimized performance characteristics by careful control of the gap thickness between the filter halves during the assembly process. The filter arrangement utilizes paddle leads whi... | 09/02/1986 |
| 4608699 | Simulcast transmission system An improved simulcast transmission in which a signal transmitted by a master station provides a reference frequency signal, as well as a voice and data path, is described. The system can be configured such that a master station can transmit AFSK data and ... | 08/26/1986 |
| 4606075 | Automatic gain control responsive to coherent and incoherent signals Disclosed, herein, is an Automatic Gain Control (AGC) signal processor and a method for generating an AGC signal in a phase-locked receiver. An incoming signal, exhibiting both coherent and incoherent characteristics, is filtered to obtain the desired ban... | 08/12/1986 |
| 4606076 | Communication receiver system having a voltage converter with an operating frequency below the receiver IF A communication receiver system for receiving coded signals and of the type having at least one predetermined intermediate frequency (IF) signal comprising a decoder for detecting and decoding the received coded signals and a DC/DC voltage converter circu... | 08/12/1986 |
| 4605903 | FSK demodulator with high noise immunity digital phase detector A receiver for receiving and demodulating FSK modulated data signals has improved sensitivity over substantial frequency offsets between the transmitter and receiver local oscillator, and low spurious electromagnetic radiation. A quadrature coupler splits... | 08/12/1986 |
| 4604568 | Current source with adjustable temperature coefficient In a circuit arrangement for providing a current having a controllable temperature coefficient of current, a diffused resistor (334) is used to set up a reference current in a current source (40) which has a temperature coefficient dependent upon the diff... | 08/05/1986 |
| 4604064 | Portable demonstrator for electronic equipment A portable audio-visual demonstration apparatus which provides operational instruction and functional simulation or particularized electronic equipment for training and exhibition purposes is disclosed. The preferred embodiment of the invention is the app... | 08/05/1986 |
| 4603418 | Multiple access data communications controller for a time-division multiplex bus Method and apparatus are provided for control of a dedicated data slot in a time-division multiplex system for both voice and data communications enabling equal access to the data slot, efficient data throughput and reliability.... | 07/29/1986 |
| 4602311 | Static protective housing A static protective housing includes a plastic housing having an outer wall and an interior. A metallic fastener extends into the housing from the outer wall. A static vault within the housing receives the metallic fastener for insulating the fastener fro... | 07/22/1986 |
| 4602229 | Resonant bandpass T filter and power splitter In accordance with the present invention there is provided a bandpass T filter and power splitter for electromagnetic energy. It is composed of a plurality of resonant elements serially arranged to form a plurality of forward multi-pole bandpass filters. ... | 07/22/1986 |
| 4600922 | Paging universal remote control encoder A paging station remote control system encoder is described. The paging system encoder generates signals in accordance with a predetermined signalling scheme comprising a series of tones and timed pauses and generated in response to control signals suppli... | 07/15/1986 |
| 4601061 | Automatic frequency control circuit having an equalized closed loop frequency response An AFC circuit may include an oscillator having an output frequency responsive to a derived error signal, a mixer for mixing a received signal with the output of the oscillator to produce an intermediate frequency, and a signal recovery detector for recov... | 07/15/1986 |
| 4598972 | High density electrical lead An improved electronic clip-on lead is disclosed. It is comprised of an elongated shaft suitable for electrical connection having a front spring finger extending from one end. A rear bracing member is positioned behind and parallel to the front spring fin... | 07/08/1986 |
| 4598215 | Wide common mode range analog CMOS voltage comparator An improved analog CMOS comparator circuit is described. The improved circuit incorporates an additional CMOS device in the output stage of a conventional differential comparator. The additional device compensates for current imbalances which occur at rel... | 07/01/1986 |
| 4596043 | High efficiency radio frequency signal amplifier for amplifying modulated radio frequency signals in a manner generating minimal splatter A processing circuit for efficiently amplifying radio frequency signals while generating minimal splatter includes a first channel having an envelope detector for generating a rectified envelope signal from a modulated radio frequency input signal provide... | 06/17/1986 |
| 4595927 | Loran C cycle slip reduction technique In accordance with the present invention, there is provided a Loran C cycle slip reduction technique that consists of sensing the signal to noise ratio and narrowing the phase locked loop bandwidth when a predetermined signal-to-noise threshold is exceede... | 06/17/1986 |
