Abstract: In a fuel injection controller, a first throttle opening TH0 is defined at a specific time P2. The P2 is a specific time later than the peak value of an intake pipe internal pressure PB of a previous cycle. In the cycle, P3 is a specific time that is set immediately before the calculation of the injection time. A second throttle opening TH2 is defined at P3. The fuel injection controller corrects a fuel injection amount based on variation in correction time ta0 at the first throttle opening TH0 to correction time ta1 at the second throttle opening TH1. The time P2 is later than time P1, which is the peak value of the intake pipe internal pressure of the previous cycle. Accordingly, the fuel injection amount correction is completely unaffected or only slightly affected by the intake pipe internal pressure, thus ensuring close-to-ideal correction.

Abstract: A method for controlling the operation of an ignition exciter with a rechargeable energy source supplying electricity to a solid-state switch is disclosed. The method includes charging the energy source at a first rate when the voltage of the energy source is less than a first voltage reference value.

Abstract: An internal combustion engine ignition device can determine ignition timing with high precision to perform ignition with high precision even where noise superimposed at the time of rise of current flowing through an ignition coil is generated. In an internal combustion engine ignition device including an output terminal for detecting an internal state such as a coil current, it is possible to prevent generation of pulse noise in the form of chattering at falling and rising edges of a voltage of the output terminal by using a hysteresis comparator, even if noise is superimposed at the time of rise of the coil current. Therefore, a voltage pulse with pulse width of high precision is transmitted to an electronic control unit without the influence of noise, and the ignition timing can be determined properly with high precision.

Abstract: An ignition device (ECU and a drive circuit) for a spark ignition type internal combustion engine that directs an ignition with generation of a predetermined start signal (i.e., falling of an ignition signal) has a circuit for monitoring generation timing of the start signal and for prohibiting the ignition based on the start signal when the start signal is generated at abnormal timing. In particular, the ignition device has a circuit for determining whether the start signal is generated at predetermined start timing and a circuit for prohibiting the ignition based on the start signal when the above circuit determines that the start signal is not generated at the start timing. Thus, damages to the engine and peripheral devices due to the ignition at the abnormal timing can be reduced.

Abstract: An embodiment of the present invention provides a method for performing a lateral flow assay. The method includes depositing a sample on a test strip at an application region, detecting a first detection signal arising from the test strip in the first detection zone, and generating a baseline for the first measurement zone by interpolating between values of the detection signal outside of the first measurement zone and inside of the first detection zone. The method may include locating a beginning boundary and an ending boundary for the first measurement zone on the test strip. Additional detection zones having measurement zones may also be incorporated with the embodiment.

Abstract: A revolution threshold regulator and/or toggle switch has a first and a second fixed phase source of alternating current having a frequency proportional to the revolution speed of a rotor of an internal combustion engine. A trigger device scans the alternating currents to emit a control signal at a revolution threshold above or below a preset revolution threshold. The trigger device has a timer module which cooperates with one of the alternating current sources through a trigger charge element which can be discharged via at least one discharge path to create a control signal. The trigger charge element, as it discharges, sends a control current through a series Zener diode in a blocking direction to the control signal output.

Abstract: A revolution threshold regulator and/or toggle switch has a first and a second fixed phase source of alternating current having a frequency proportional to the revolution speed of a rotor of an internal combustion engine. A trigger device scans the alternating currents to emit a control signal at a revolution threshold above or below a preset revolution threshold. The trigger device has a timer module which cooperates with one of the alternating current sources through a trigger charge element which can be discharged via at least one discharge path to create a control signal. The trigger charge element, as it discharges, sends a control current through a series Zener diode in a blocking direction to the control signal output.

Abstract: Analog RPM limiting circuit for use with various types of ignition systems, employing a temperature stabilizing transistor Q3(6) configured as a single junction with biasing resistor R1a(7), a transistor Q2(5) used as a voltage threshold as well as a rapid timing capacitor recharging switch with a regenerative loop supplying bias to an associated regenerative capacitor charging switch Q1(4) constituting a mono-stable multivibrator, with a manual switch S1 for selecting timing capacitors for scaling the timing period according to the number of cylinders, and with another manual switch Q2 for selecting timing resistors for user adjustable RPM limit range, and Q1 and Q2 also used for imput triggering and output signal inhibition to provide the RPM limiting function.