Bizarre Patents
Behavior Modification Wristwatch
A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.
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| Number | Title | Issue Date |
| 5199044 | System for detecting position of object having data carrier A plurality of data carriers are prepared and possessed by, for example, persons who enter a building. The data carrier spread spectrum modulates a carrier signal of a predetermined frequency by an assigned Gold series corresponding to an ID code and tran... | 03/30/1993 |
| 5173709 | Electronic direction finder An electronic direction finder (10) includes a navigation receiver (28) and a compass (32) to generate a bearing signal that indicates that direction of a desired destination. The bearing signal is received by a display driver (34) which causes an electro... | 12/22/1992 |
| 5146231 | Electronic direction finder An electronic direction finder (10), having a housing (11) with a major axis (18), has a GPS receiver (28) and directional (31) and omnidirectional (30) antennas and provides an electrical signal (angle A) indicative of the direction of the housing axis (... | 09/08/1992 |
| 5121126 | Beacon enhanced telecommunications system and method A public switched telecommunications network including a beacon transmitter associated with a station in such network and transmitting periodic beacon signals containing information regarding the location of said beacon and station. A portable receiver is... | 06/09/1992 |
| 5105197 | Mobile access to telecommunications network A method and system for providing mobile access to message delivery into the existing public telecommunications network. A portable handset and transceiver have storage capacity and a processor for digitizing and time compressing messages inputted by the ... | 04/14/1992 |
| 5003316 | Single null miniature direction finder A single null miniature direction finder which may be worn on the arm of the user and is fully automatic in operation. Signals from a single loop antenna and a sense antenna are summed; however, the amplitude of the sense signal is adjusted at first and s... | 03/26/1991 |
| 4528566 | Transmitter and receiver locating device A directional locating device transmits pulsed RF signals at a stabilized frequency and is carried by an object the direction of which is to be determined from a distance remote from the transmitter. A one-half wave delay line in the receiver is responsiv... | 07/09/1985 |
| 4475106 | High sensitivity portable radio direction finder A simple inexpensive, very effective high to ultra high frequency radio direction finder is disclosed utilizing two parallel antenna units with switching means for alternately connecting the antenna units to a conventional unmodified FM or NBFM receiver a... | 10/02/1984 |
| 4422076 | Passive synthetic aperture system for locating a source of electromagnetic radiation A vehicle-mounted passive synthetic aperture system for locating a source of electromagnetic radiation having a given wavelength λ. The system includes first and second receiving antennas, a phase sensitive receiver and a signal processor. The first and ... | 12/20/1983 |
| 4410890 | VHF Directional receiver A miniature handheld receiver contained in a metal shielding enclosure incorporating a slot type directional antenna as a part of the structure such that when the antenna is aligned with a radio frequency signal of interest, a null is produced in the sign... | 10/18/1983 |
| 4225867 | Orientation system An orientation system adapted to be mounted within a vehicle, comprising a display including a rotational heading indicating compass card fabricated from an image retaining fluorescent display panel responsive to bearing data signals generated by selected... | 09/30/1980 |
| 4045799 | Radio locating unit for persons in distress Radio locating unit for persons in distress which unit is provided with a directional antenna whereby it can be used as active search unit by a rescuer and which is further provided with an omni-directional antenna and automatic switching means for energi... | 08/30/1977 |
| 4040058 | Direction finder An automatic direction finder wherein a loop antenna is fitted within a combined handle and index rotatably pivoted at the center of a direction dial, a gear of a diameter large enough is fixed to said index and a pinion meshing with said gear is connecte... | 08/02/1977 |
| 4025924 | Mobile direction comparator A Mobile Directional Comparator (MDC) used in combination with a communications receiver to process received signal information from a two port antenna system to drive a directional indicator. A radio frequency modulator modulates two received cardioid an... | 05/24/1977 |
| 4023176 | Beacon tracking display system A display system is disclosed for use in connection with a beacon tracking receiver. The display system provides both audible and visual displays for use in locating a source of radio transmission. The display includes an audible tone signal to indicate t... | 05/10/1977 |
| 4003060 | Direction finding receiver A direction finding receiver contained in a hand held portable housing with a ferrite rod antenna mounted in and protruding through the housing so that when the antenna axis points to the radio frequency signal source to be direction found, a null is obta... | 01/11/1977 |
| 4001828 | Beacon tracking receiver A radio frequency receiver is responsive to signals radiated by a remote transmitter. The receiver includes at least one pair of antennas separated by approximately one-half wavelength at the transmitter frequency. The phases of the signals detected by th... | 01/04/1977 |
| 3965425 | Electromagnetic radiation source locator A radiation locator apparatus includes a tuned or tunable radio receiver having an automatic gain control (AGC) circuit that provides a d.c. signal having an amplitude that is a function of the strength of the received radiation. A free running voltage co... | 06/22/1976 |
