Bizarre Patents
Dining Table Having Integral Dishwasher
A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.
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| Number | Title | Issue Date |
| 7157867 | Operating method, electronic ballast and system for resonant operation of high pressure lamps in the longitudinal mode The operating method is based on the simultaneous use of FM and AM and is distinguished by passing through a number of steps which are used to find an optimum frequency for the AM and, in addition, to define an optimum AM level. An electronic ballast which has a mem... | 01/02/2007 |
| 6957052 | Transmission system, receiver, circuit, and method for removing interference components in a signal The transmission system according to the invention comprises a transmitter (10) and a receiver (12). The transmitter (10) can transmit a signal (11) to the receiver (12). The receiver (12) comprises an interference absorptio... | 10/18/2005 |
| 6954627 | Blind modulation cancellation by addition of modulated signal A signal processing method, applied in a wireless communications module having a receive path, prevents a nonlinear device in the receive path from using an amplitude modulated transmit or other bleed-over signal in the receive path to modulate a non-amplitude modul... | 10/11/2005 |
| 5659272 | Amplitude modulation method and apparatus using two phase-modulated signals A method and apparatus for generating an amplitude-modulated signal based on a modulation signal including first and second digital oscillators which are controlled based on first and second phase shifts derived from the modulation signal, and output firs... | 08/19/1997 |
| 4939482 | Remote optical sensing device and method A remote sensing system including a control module coupled to a remote device module via an optical fiber is disclosed. The device module includes circuitry for detecting changes in physical parameters and for transmitting data relating thereto back to th... | 07/03/1990 |
| 4816780 | Modulator comprising a comb filter By the use of two additional mixing stages (21, 26) it is possible to replace the 2H glass delay line (operating at approximately 4.43 MHz) used in the known modulators by, for example, a charge-coupled device CCD (8) (which operates at approximately 625 ... | 03/28/1989 |
| 4710723 | Receiver having a modulation amplifier for enhancing reception of a desired signal in the presence of interference To enhance the detection of a desired signal in the presence of interference, the degree of modulation of a received input signal is amplified. In the preferred embodiments, this is accomplished by amplifying the degree of amplitude modulation. This works... | 12/01/1987 |
| 4319204 | Phase modulated square wave generator A pair of square waves of a carrier frequency are applied respectively to a pair of amplifier circuits having a common output circuit. The output circuit is connected so that the energy therein is dependent upon the relative phases of the square waves. A ... | 03/09/1982 |
| 4272737 | Pulse width modulator for amplitude modulation circuit A pulse width modulation circuit which uses a tube, such as a tetrode tube as the switching element, is arranged to minimise excessive power dissipation in the screen electrode circuit of the tube. The screen electrode is driven from a constant current so... | 06/09/1981 |
| 4250469 | Filter for converting pulse width modulation to amplitude modulation In a high efficiency amplitude modulation circuit. A pulse width modulation switch is arranged with a low pass filter to attentuate switching frequencies of the switch. A diode is connected in parallel with the input terminals of the low pass filter which... | 02/10/1981 |
| 4223282 | Method of reducing interference components in a frequency modulated signal and device for carrying out said method A method of reducing interference components in a frequency-modulated carrier signal in which the modulating signal contains a composite color television signal with a chrominance signal modulated on a chrominance subcarrier wave. In addition to the frequ... | 09/16/1980 |
| 4213103 | Circuit for detecting and controlling simultaneous conduction of two switches connected in series A switching system is described for use in for example AM transmitters comprising at least one pair of semi-conductor output switches connected in series across an AM modulated D.C. supply and arranged to be operated sequentially by a series of "on" and "... | 07/15/1980 |
| 4118677 | Pulse width modulating circuit A modulator includes an output tank circuit energized from a d.c. source through a switching tube and a coupling circuit. The grid of the switching tube is driven by signal-modulated variable width rectangular pulses. The resulting output pulses from the ... | 10/03/1978 |
| 4093919 | Carrier converter comprising a variable impedance circuit pair or at least one balanced diode bridge A carrier converter comprises a branching filter for dividing an FM signal into a pair of component signals having amplitudes varying in relation to the FM signal frequency in different frequency ranges. A directional coupler is coupled to a pair of varia... | 06/06/1978 |
| 4063199 | Radio frequency pulse width amplitude modulation system Amplitude modulation of a radio frequency carrier is achieved by generating a rectangular wave pulse train at the carrier frequency, the pulses of which vary in width as a function of the amplitude of the audio input signal. The audio frequency input wave... | 12/13/1977 |
| 4001729 | FM to AM converter An FM to AM converter which utilizes a source of unmodulated radio frequency energy, two mixers, and a filter to convert an FM signal to an AM signal. The incoming FM signal is mixed with the unmodulated RF energy. The mixed signal is then passed through ... | 01/04/1977 |
| 3983487 | FM-AM converter An FM-AM converter in which the FM signal is applied to a slope filter in a transmission system. The resulting amplitude modulated FM signal is applied to a circuit that derives a control signal corresponding to the mean value of the amplitude modulated F... | 09/28/1976 |
| 3958191 | Multi-line, multi-mode modulator using bandwidth reduction for digital FSK and DPSK modulation A multi-line multi-mode modulator uses compatible digital modulation techniques for multifrequency (MF), frequency shift keyed (FSK) and differential phase shift keyed (DPSK) modulation to achieve a multi-line multi-mode modulator which is capable of hand... | 05/18/1976 |
| 3956716 | Pulse width modulated signal amplifier A pulse width modulated signal amplifier including a signal input circuit, a clock pulse generating circuit, a pulse phase modulating circuit and a pair of pulse transformers. The pulse phase modulating circuit is supplied with the output signal of the si... | 05/11/1976 |
| 3956715 | Amplitude modulation system An amplitude modulation system suitable for use in television broadcasting is described including phase modulating means for phase modulating a carrier signal with an input signal to provide a first phase modulated signal having a phase according to the a... | 05/11/1976 |
| 3955155 | Amplitude modulation system An amplitude modulation system suitable for use in television broadcasting is described. A video signal amplitude modulates a radio frequency carrier signal. The amplitude modulated signal is then filtered by a delay equalized vestigial sideband filter. T... | 05/04/1976 |
