Abstract: Data or control signals are communicated over a three phase power cable supplying power from a surface location to a motor/pump assembly located within a wellbore utilizing modulated radio frequency signals. The radio frequency signals may be impressed on the power cable through physical taps to the power cable conductors or by reactive coupling to the power cable. The transmission frequency is selected from a range of frequencies which propagate through the motor windings and up the power cable with sufficient amplitude to be received and processed. The modulated RF signal may be transmitted concurrently with the three phase power on the power cable, and simultaneous bidirectional communications between the surface and downhole locations may be supported utilizing, for example, discrete frequencies for transmission in different directions.

Abstract: A hand-held remote control unit for controlling the operation of a television and other electronic audio/video components, such as a VCR, DVD player, or home stereo, operates in a different mode for use as a video game controller. The location and position of the push buttons on the remote controller unit are arranged such that a subset of the buttons that are used for the television remote control are operable in a different mode as a video game controller. A user rotates the remote control unit from a vertically upright position to a horizontal position to use the remote control unit for operating a video gaming system. When used as a video game controller, the controller indicates which of the subset of buttons on the remote control are to be used for operating the video game.

Abstract: A control device for a motor vehicle having a fingerprint scanning surface via which a fingerprint sensor detects a fingerprint in the form of a fingerprint signal of a user. Motor vehicle functions can be released as a function of the fingerprint signal. The motor vehicle functions can also be released by a key. A control element is provided with the fingerprint scanning surface and a mechanical receptacle for the key.

Abstract: A remote control, particularly for wireless remote control of a closing device in a motor vehicle, has a first transmitter for outputting an optical signal, and a second transmitter for outputting a radio signal. The two transmitters are able to be activated for signal output by at least one actuation element. An input of the first transmitter and/or of the second transmitter is connected to a clock transmitter in order to output the optical signal and/or the radio signal in pulsed fashion at particular intervals of time in order to save energy. Also an associated remotely controllable device and a full remote control configuration are disclosed.

Abstract: A novel technique and system for improved monitoring of the storage security of firearms (and other objects) and, through a microprocessor radio-controlled transceiver embedded within the firearm, enabling detection of theft or removal, and then radio-tracking of the stolen firearm by police or others with continual identification of that firearm, and also with the further feature of providing automatic warning to schools or other public buildings or locations of the intrusion in their vicinity of a bearer carrying the stolen firearm.

Abstract: The response of an object to a single time-varying magnetic field is sensed to determine object position and/or manipulation on a horizontal or vertical surface. A time-varying interrogation signal, which interacts with tags disposed on the surface, is read by an array of sensing coils. Control circuitry receives signals from the sensing coils representing this interaction and, based thereon, determines the identity, position, and manipulation of each of the objects based on the sensed signals and the known positions of the sensing coils. Feedback to the user can be provided in the form of a localized output (e.g. light, sound, heat, etc.) physically coincident with the object.

Abstract: A logic state detection system for detecting the state of at least one state changing device includes a scanning circuit and a current detection circuit. The scanning circuit selectively activates at least one output line electrically connected with the at least one state changing device. Current passes through the scanning circuit to the at least one output line that is activated. The current detection circuit determines whether the state changing device is in a conducting or a non-conducting state as a function of the current.

Abstract: A mud pulse telemetry technique that uses a number of bits per interval based on parameters of the pulse position modulation system in order to reduce data transfer time in a pulse position modulation system. More particularly, depending on parameters of the pulse position modulation such as the minimum-time and the bit-width, it may be possible to decrease overall transmission time by splitting values having a larger number of bits into multiple transmissions with each transmission having a smaller number of bits.

Abstract: Processing circuitry is provided for processing signals received from, for example, sense coils forming part of a position encoder used to encode the relative positions of two relatively moveable members. The position encoder is such that each of the plurality of signals from the sense coils varies sinusoidally with the relative position of the members but out of phase with respect to each other. The processing circuitry comprises mixers for multiplying each of the received signals with one of a corresponding plurality of periodic time varying signals, each having the same predetermined period and a different predetermined phase, and an adder for adding the signals from the mixers. The phase of the mixing signals are chosen so that the output signals from the adder contains a single periodic component having the predetermined period whose phase varies with the relative position of the two members.

Abstract: The universal electronic identification tag is for use with a variety of readers of different designs including a control reader which can be used to control the operations of the universal tag. A reader interrogates a tag by transmitting a carrier. The universal tag comprises a transducer, a modulator connected across the transducer, and a control means. The control means causes the modulator to drive the transducer with a plurality of different message waveforms after interrogation by a reader, the tag identity being embedded in each of the message waveforms. The message waveforms can be transmitted either simultaneously, sequentially, or both ways. A message waveform is comprised of a sequence of contiguous waveform segments, each waveform segment representing the value of an N-bit group, N being an integer. A waveform segment is a periodic signal characterized by the parameters frequency, phase, and amplitude.

Abstract: A state-based remote control system for providing efficient and simple operation of a plurality of electronic devices as a coordinated system based upon an overall task. The state-based remote control system includes a housing, a keypad in communication with an electronic system contained within the housing, and a communication device in communication with the electronic system for communicating with external electronic devices. The electronic system monitors the buttons selected by a user to determine the state of all external electronic devices that are to be controlled. When the user selects a task (e.g. watch television), the electronic system automatically determines the actions required to achieve the desired task based upon the current state of the external electronic devices. After the task has been fulfilled, the electronic system updates the data to reflect the modified state of the external electronic devices.

Abstract: A method of transmission between two elements chosen from a terminal and a transponder, each element including an oscillating circuit, a modulator and a demodulator, including simultaneously performing a transmission in amplitude modulation of a signal transmitted from a first to a second element and a transmission of a signal from the second to the first element adapted to being submitted to a phase demodulation in the latter, and wherein the amplitude modulation rate is smaller than 100%.

Abstract: A door alarm system and a door lock assembly having an interior rose having a request to exit (REX) switch. The alarm system generates an open door alarm when a door into a secured area is open unless the REX switch generates a REX signal indicating that the door was opened by someone on the inside of the secured area. Mechanical isolation in the door lock assembly prevents a forcing movement on the outside of the door from causing a false generation of the REX signal.

Abstract: A remote control transmitter for operating an electronic appliance with an infrared ray, which is easy-to-operate and inexpensive. The remote control transmitter does not change the illumination of an illuminating device even when an operation key is manipulated. The remote control transmitter has a voltage control circuit including a diode having substantially the same power consumption as an infrared ray output means, and a control transistor connected parallel to the diode for turning on and off according to the electric signal from a microcomputer. Since a current flowing in the diode is controlled by the control transistor, a constant voltage is always applied to the driving circuit for lighting up the illuminating device regardless of an manipulation of the operation key.

Abstract: An electronic locking device for use by the transportation industry. The electronic locking device is used to control access to a cargo area of a vehicle, such as a tractor-trailer vehicle used in the trucking industry. The electronic locking device is controlled depending on one or a combination of factors including the location of the vehicle, the speed of the vehicle, the delivery status of the vehicle, or other factors.

Abstract: A remote control system for precisely identifying a distance from the vehicle to an entry key and favorably controlling a vehicle-mounted device such as a door corresponding to the distance. The system comprises a transmitter transmitting different types of response demand signals within a predetermined communication area outside the vehicle, a vehicle mounted receiver for receiving a response signal released from a portable transmitter/receiver in response to the reception of the response demand signal, a controller controlling the vehicle mounted device corresponding to the reception of the response signal by the vehicle mounted receiver. Locking and/or unlocking door(s) of the vehicle are controlled on the basis of whether or not the receiver receives the response signal to a response demand signal other than one having the largest communication area.

Abstract: A security badge to be worn by a person seeking access to a secure system. The badge includes a data processor having a non-volatile and a volatile memory, a transceiver, and an attachment sensor. The volatile memory stores information related to the wearer's security clearance. This information is loaded after the badge is attached to the person and the person's identity is verified. This information is deleted from the volatile memory if the badge is removed from the wearer or subjected to tampering. The data processing system has sufficient computing power to allow the badge to execute encrypted communications with the secure system.

Abstract: A remote transmission apparatus for a portable object equipped with an antenna and connected by inductive coupling to a fixed station comprises data processor for processing and storing data concerning the portable object; a voltage rectifier for transforming the AC voltage supplied by the antenna of the portable object into a DC voltage carried by a power line (Vdd) to the data processor; a voltage regulator for regulating the DC voltage provided by the rectifier; and a modulator for modulating the signals to be transmitted comprising a transistor connected to an electronic dipole that causes a drop in voltage between the input and output of said modulator, said modulator being connected to the input of the voltage regulator to control the voltage on the terminals of the antenna in order to modulate the current flowing in the antenna.

Abstract: A selective calling signal and a received message signal are received via a radio receiver unit 1 and a decoder unit 2. The received message from the radio receiver unit 1 is stored in a message storing unit 3. The received message stored is displayed on a screen of a display unit 4 based on the display operation of an operating unit 6 under control of a controller unit 8. At this time, an adder unit 5 adds and counts the piece number of the received messages, which are newly received during a period from the display operation to the succeeding display operation, for every attribute category displayed during the screen display of the received message on the display unit 4. Then, information of the adder unit (the piece number of the new unread received messages per attribute category) is displayed on the screen of the display unit 4 under control of the controller unit 8.

Abstract: A communication device comprises: a portable transmitter which comprises operation switches, an ID code storage unit, a control unit and a transmission unit; and a receiver which comprises a receiving unit, a reference code storage unit, a control unit and a control signal generating unit capable of generating a plurality of control signals, the portable transmitter transmitting an information signal containing an ID code, the receiver comparing the ID code contained in the received information signal with a reference code, and the control signal generating unit outputting a control signal when these codes coincide with each other, wherein the portable transmitter comprises ID registration mode setting means, an ID code corresponding to the operation is formed and registered in the ID code storage unit when the control unit is set to an ID registration mode and the operation switch is operated multiple times within a predetermined ID registration mode time, and a test ID code common to a plurality of portable