Bizarre Patents
Apparatus for Simulating a High Five
A self-righting hand-arm configuration which is adapted to pivot when struck by a user, thereby simulating a "high five."
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| Number | Title | Issue Date |
| 5172395 | Method of and apparatus for deriving an indication of noise content of data bits An indication of the noise content of data bits on a signal line is derived by sampling the amplitude of a signal on the line several times during each of the data bits to derive for each data bit a several bit binary word. Each bit of the several bit wor... | 12/15/1992 |
| 5084621 | Radiometric standard infrared detector A radiometric standard detector responsive to infrared energy comprises an indium antimonide photovoltaic generator, a first mirror and a vacuum dewar including a cold finger and a window. The first mirror and photovoltaic generator are positioned in the ... | 01/28/1992 |
| 5073905 | Apparatus for and method of synchronizing a local oscillator to a received digital bit stream An output of a local oscillator is synchronized to received bits of a digital bit stream by sampling the binary value of each of the received bits several times during each of the received bits, to derive for each received bit a several bit binary word re... | 12/17/1991 |
| 5062123 | Kalman predictor for providing a relatively noise free indication of the phase of a carrier laden with noise A receiver responsive to a noise laden phase modulated signal on a carrier hard limits the signal to derive a constant amplitude phase modulated r.f. signal. The constant amplitude phase modulated r.f. signal is supplied to processing circuitry to derive ... | 10/29/1991 |
| 5008523 | Current measuring circuit with means for nullifying the effects of current source and lead resistance Current derived from an indium arsenide current generating photodetector is determined accurately, despite the presence of a variable resistance between terminals of the photodetector and the photodetector having leads with appreciable resistance connecte... | 04/16/1991 |
| 4939525 | Tunable short monopole top-loaded antenna A short monopole RF antenna tuned over a predetermined RF frequency band in response to binary control signals includes a conductive tubular radiating element extending generally at right angles to a ground plane on which the antenna is mounted. A conduct... | 07/03/1990 |
| 4879527 | Phase lock loop and improved phase detector therefor A voltage controlled oscillator of a phase lock loop responds to a phase error signal having a value commensurate with the phase difference between input and output signals of the loop, wherein the phase difference extends over more than a one cycle diffe... | 11/07/1989 |
| 4864639 | Self-test device and method having an amplifier converted into an oscillator An FM receiver is self tested by connecting a positive feedback network in circuit with a wideband, front end r.f. amplifier of the receiver, so that the amplifier is converted into an oscillator. R.f. and i.f. characteristics of the receiver are determin... | 09/05/1989 |
| 4748641 | Suppressed carrier modulation method A carrier is modulated with binary coded data to produce a suppressed carrier constant amplitude wave by shaping modulation for the carrier so the carrier phase changes gradually between predetermined values without cumulative errors, in response to adjac... | 05/31/1988 |
| 4658436 | Disguised transmission system and method Data signals are transmitted at a variable information rate with variable power so the transmitted information rate and transmitted power level increase and decrease together to simulate high frequency fading and enable the data transmission to be disguis... | 04/14/1987 |
| 4633422 | Apparatus for and method of compensating for variations due to aging Variations, due to aging, of resonant frequency characteristics of electromechanical resonators are compensated by an oscillator including the resonantor. An indication of the amount of time that the oscillator is operating addresses a table of values ind... | 12/30/1986 |
| 4618966 | Frequency shift key modulator A carrier wave is frequency modulated to one of M different output frequencies that deviate from the carrier wave frequency by &#b1;k1, &#b1;k2 . . . &#b1;kq. The carrier is modulated in response to a clocked digital signa... | 10/21/1986 |
| 4535461 | Digital clock bit synchronizer A clock wave is synchronized to the frequency of serial binary data bits. Digital circuitry derives a clock wave by responding to the data bits to selectively (a) increment a reference frequency, (b) decrement the reference frequency, and (c) not change t... | 08/13/1985 |
| 4485360 | Apparatus for and method of impedance matching An rf load is matched to an rf source by a matching network having series and shunt impedances connected between the source and load. A network coupled to the load derives a first rf signal responsive to rf energy reflected from the load. Another network ... | 11/27/1984 |
| 4468746 | Apparatus for determining interval between two events The interval between first and second events, which may occur in a period less than a nanosecond interval, is determined with a square wave clock source started in response to the first event. The source derives a square wave having a first transition whe... | 08/28/1984 |
| 4449237 | Audio feedback suppressor Positive feedback of an acoustic signal from a loud speaker to a microphone of a loud speaker system, i.e., howling, is prevented by randomly phase shifting an electric signal containing audio information supplied to the speaker. The random phase shifting... | 05/15/1984 |
| 4423381 | Pulse control circuit A frequency synthesizer or a circuit for deleting cycles from a wave source includes a dual modulus counter responsive to a reference frequency source of the synthesizer or waves of the source. The dual modulus counter selectively decreases the number of ... | 12/27/1983 |
| 4303892 | Unconditionally stabilized microwave transistor amplifier Input and output electrodes of a microwave, active semiconductor amplifying element are shunted to ground by resistive means having values selected to assure unconditional stability of the semiconductor amplifying element. The resistive means and active e... | 12/01/1981 |
| 4290143 | Transmission method and apparatus wherein binary data bits are converted into barker words and vice versa A binary encoded data transmission system wherein a binary data bit of a first value is represented by a first predetermined multi-bit binary Barker word and a binary data bit of a second value is represented by a second multi-bit binary Barker word, the ... | 09/15/1981 |
| 4281412 | Method of and apparatus for transmitting and recovering offset QPSK modulated data Bit timing references are derived at a receiver for a carrier modulated by OQPSK. A carrier is transmitted with a constant reference phase modulation during a first interval. During a subsequent, second interval the carrier is transmitted with rotational ... | 07/28/1981 |
| 4267591 | QPSK Suppressed carrier with rotating reference phase A suppressed carrier signal is offset quadrature phase shift key modulated so the reference carrier phase is stepped 90° in the same direction in synchronism with sequential bits of a serial data stream and is further bi-phase modulated in response to th... | 05/12/1981 |
| 4236126 | Variable RF attenuator A variable pi RF attenuator includes shunt input and output branches, between which is connected a series branch. Each branch includes a voltage controlled variable impedance PIN diode. The level of a d.c. control input voltage is converted into a first d... | 11/25/1980 |
| 4210912 | Pulsed doppler moving target detector A pulsed doppler radar for detecting a moving target includes a plurality of antennae with patterns covering different spatial regions, wherein adjacent regions have overlapping spatial regions. Pulses having a predetermined carrier frequency are applied ... | 07/01/1980 |
| 4188585 | Synchronized receiver power system A portable radio receiver powered by a battery includes an RF amplifier, an IF amplifier and an audio amplifier powered by a first regulated, switched, DC power converter that derives a first DC voltage. A frequency synthesizer, including varactor diodes,... | 02/12/1980 |
| 4185265 | Vehicular magnetic coded signalling apparatus Coded binary signals are coupled to an automotive vehicle by a magnetic signpost embedded in a traversed roadway lane. The signpost includes polarity coded magnetic pole faces having vertically directed flux lines at differing spaced longitudinal regions ... | 01/22/1980 |
| 4173777 | Jet aircraft and/or missile plume simulator The intensity and spectral content of a jet aircraft and/or missile plume is simulated with a xenon lamp that derives an optical beam which propagates through a filter. The filter prevents optical energy in the visible light region from propagating throug... | 11/06/1979 |
| 4114155 | Position determining apparatus and method The position of a receiver responsive to C/A signals derived from multiple, orbiting space crafts is determined to an accuracy of greater than 300 meters. Each of the C/A signals has the same carrier frequency and a different, predetermined Gold code sequ... | 09/12/1978 |
| 4112395 | Method of and apparatus for matching a load circuit to a drive circuit A high Q load circuit is automatically matched to a drive circuit with an L network having a series reactance and a shunt reactance, one of which is on a load circuit side of the network and the other of which is on a drive circuit side of the network. Th... | 09/05/1978 |
| 4081207 | Scanning lens system A circular scanning lens system comprises a Petzval lens device having an optical axis on which are located first and second spaced lenses. A Rantsch derotator is positioned between the lenses and has an optical axis coincident with the axis of the Petzva... | 03/28/1978 |
| 4067050 | Programmed presentation system Clock and binary NRZ signals are derived from a data track of a magnetic tape. The data track includes a pattern having a substantially constant wave length of magnetic flux variations along its length. The variations are in the form of a carrier wave hav... | 01/03/1978 |
| 4064898 | Purge and charge equipment A completely self-contained portable apparatus that is easily carried scrubs contamination from a sealed container and charges the scrubbed container with inert gas. A housing for the apparatus carries a reservoir for the gas, a service line for supplying... | 12/27/1977 |
| 4056720 | Scanning point source optical energy detector A relatively large field of view is scanned to derive an indication of a point source, optical energy emitter being in the field of view, without recognizing relatively large, non-point emitters in the field of view. Each detector in an array of linearly,... | 11/01/1977 |
| 4038604 | Signal to noise ratio indicating circuit A radio receiver squelch circuit responds to an IF carrier modulated by any of AM voice, AM pulse, CW, interrupted CW, or angle modulated signals. After the IF carrier is amplitude normalized it is supplied to a network for deriving a D.C. voltage having ... | 07/26/1977 |
| 4024540 | Continuous wave FM tone ranging radar with predetection averaging A CW FM TR radar receiver responsive to a local tone modulation source and a return signal having a carrier frequency modulated by the tone is particularly adapted to handle a return signal containing different returns derived from multiple targets and/or... | 05/17/1977 |
| 3995237 | Automatic matching method and apparatus A high-Q load circuit is matched to a drive circuit with an L-type filter network including series and shunt reactances which are both either inductive or capacitive. While a first of the reactances is effectively removed from the network, the value of th... | 11/30/1976 |
| 3992101 | Scanning optical spectral analyzer employing plural detectors A scanner having an instantaneous narrow field of view determines spectral and positional information of a point source of optical radiation in a relatively wide field of view. A first optical path includes the scanning means, a dispersion means, and a fi... | 11/16/1976 |
| 3987484 | Programmed presentation system A system for automatically supplying information to an operator, such as a student being taught to repair a piece of equipment, includes a magnetic tape storage medium having audio and video information storage tracks. A coded data signal track having ind... | 10/19/1976 |
| 3971921 | Apparatus for distinguishing time varying analog signals An optical scanner having a narrow instantaneous field of view optically scans an entire field of view to determine if a particular source of optical radiation is in the field of view. A first detector responds to energy of a source imaged by the scanner ... | 07/27/1976 |
| 3969666 | Universal impedance test load The test load includes a T-type resistive attenuator, the elements being variable in unison, cascaded with switch-selected series or parallel adjustable or variable reactive elements. The combination permits setting noninteractively and independently the ... | 07/13/1976 |
