Abstract: An in-vehicle transmitter for wirelessly controlling a plurality of remote electronic systems is described. The transmitter includes a memory configured to store a plurality of wireless control code for the plurality of remote electronic systems. The plurality of wireless control code includes a first code to control the operation of a first remote electronic system and a second code different than the first code to control the operation of a second remote electronic system. The transmitter further includes a control circuit mounted to a vehicle interior element configured, in response to operator actuation of one switch, so that the transmitter provides a first wireless control signal having the first code and a second wireless control signal having the second code.

Abstract: An investment portfolio management facility is disclosed. The facility is a computerized system for providing data integrity for investment portfolios. When an entry is made, the entry is checked for consistency with previously-made entries and with rules for portfolio entries. If an error is detected, the system alerts users to the error and also provides signals to check for further errors. The user may be made aware of the error or errors through a user interface.

Abstract: A wireless control system for wireless control of a home electronic system based on the location of the wireless control system includes a transmitter circuit, an interface circuit, and a control circuit. The transmitter circuit is configured to transmit a wireless control signal having control data which will control the home electronic system. The interface circuit is configured to receive navigation data from a navigation data source. The control circuit is configured to receive the navigation data, to determine a distance between the wireless control system and the home electronic system based on the navigation data, and to command the transmitter circuit to transmit the wireless control signal based on the distance.

Abstract: A transmitter for wirelessly controlling a plurality of remote electronic systems includes a memory, a transmitter circuit, and a control circuit. The memory is configured to store a plurality of control data messages, each control data message configured to control a different remote electronic system. The control circuit is configured to command the transmitter circuit to transmit a plurality of wireless control signals in response to a single event, each wireless control containing a different control data message.

Abstract: The present invention described a signal conditioner. A thermocouple produces a signal that is present at a summing node input of a conditioning amplifier. The conditioning amplifier has a plurality of selectable gain values by which amplifier sensitivity may be varied to complement that of the thermocouple. Provision is made at the summing node input of the summing amplifier for thermocouple cold junction compensation and range offset. The present invention finds application in monitoring thermal conditions in an industrial process, such as a nuclear reactor. The high degree of precision and reliability required in such processes is maintained by including a test circuit which provides a selectable test pulse to the summing node input of the conditioning amplifier. One aspect of the present invention is the provision for testing during actual circuit operation in a process and irrespective of selected conditioning amplifier sensitivity.

Abstract: A resistor temperature device (RTD) trip unit is described. The RTD monitors thermal conditions at an industrial process location, such as in a nuclear reactor. Resistance of the RTD varies in accordance with temperature at the monitored process location. An amplifier circuit produces an output signal, corresponding to the variations in RTD resistance, which signal operates a plurality of relay circuits. The relay circuits variously report process conditions such as failure, the obtaining of a preselected level, etc. Additionally, metering provides a continuous analog indication of thermal conditions at the monitored process locations. To correct for non-linearity inherent in the RTD resistance slope, a recursive feedback path is coupled between the RTD amplifier stage and an RTD current source, such that a decreasing resistance slope produces a complementary increase in current supply to the RTD. The result is a linear output signal from the RTD amplifier.

Abstract: A testable physically isolated control circuit includes a first unit 10, a second unit 40, and an optical coupler 30 to couple units 10 and 40 together. The functional portion 10a of the first unit includes an input terminal 11 and an oscillator 12 for controlling a first transmitter 17. Signals from the first transmitter are received by a receiver 44 in unit 40 to control the relay 48. Each unit 10 and 40 also includes a testing portion 10b and 40b for monitoring the condition of the functional portions. The testing portion 40b detects the state of the receiver 44 and the relay 48 and transmits this information via transmitter 65 to a receiver 22 in first unit 10. This receiver 22 controls input terminals 29 and 15 to provide control information concerning the proper functioning of the circuit.