"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7280904 | Marine vessel running controlling apparatus, and marine vessel including the same A marine vessel running controlling apparatus is applicable to a marine vessel which includes a propulsive force generating unit having an engine with an electric throttle as a drive source for generating a propulsive force to propel a hull of the marine vessel. The... | 10/09/2007 |
| 6895932 | Synchronized cylinder event based spark A method to deliver spark during a start for an internal combustion engine is described. The method provides individual cylinder spark angle control based on the number of cylinders after synchronization between engine timing and an engine controller are achieved. T... | 05/24/2005 |
| 6678608 | Robust interpolation method for improved automative engine control during transient engine operation A system (12) and method for determining a value for a control variable for an engine (10) are provided. The system (12) includes an electronic control unit (ECU) (62) configured to obtain a plurality of pairs of programmed timing values for the opening a... | 01/13/2004 |
| 6298824 | Engine control system using an air and fuel control strategy based on torque demand A control system for a fuel injected engine provides an engine control unit that receives signals from a throttle handle that is manually manipulated by an operator of a marine vessel. The engine control unit also measures engine speed and various other p... | 10/09/2001 |
| 5957110 | Ignition timing control device of an engine An ignition timing control device including a mass flow meter arranged in the intake passage. At the time engine warmup, at high load operation where the mass flow rate of the intake air is higher than the reference value, the ignition timing is made a ba... | 09/28/1999 |
| 5069184 | Apparatus for control and intake air amount prediction in an internal combustion engine An apparatus to calculate the intake pipe pressure using the degree of throttle opening and the engine speed, to use this intake pipe pressure to calculate a current intake pipe pressure, and to determine a predicted value from this current intake pipe pr... | 12/03/1991 |
| 5035226 | Engine control system An engine control system comprises a circuit for selecting a first engine controlled variable or a second engine controlled variable according to engine condition, changeover value for introducing to a pressure sensor the atmospheric pressure when the cir... | 07/30/1991 |
| 5016590 | System for controlling ignition timing of an internal combustion engine A plurality of basic ignition timings are stored in a first memory in accordance with engine speed and absolute pressure of intake air. An ignition timing is calculated based on the basic ignition timing derived from the first memory. A plurality of retar... | 05/21/1991 |
| 4881509 | Electronic control device for internal combustion engine with EGR control apparatus An electronic control device in an internal combustion engine with an EGR apparatus for calculating a predetermined control variable such as a fuel injection time period or an ignition timing, and correcting same to exclude a component stemming from EGR g... | 11/21/1989 |
| 4814997 | Method and apparatus for estimating an atmospheric pressure based on an intact air pressure at a certain time A system for correcting for atmospheric pressure without using an atmospheric pressure sensor. A single pressure sensor measures air pressure in the intake manifold of a fuel injected engine. A control unit controls the fuel amount and injection timing in... | 03/21/1989 |
| 4787043 | Method of measuring barometric pressure and manifold absolute pressure using a single sensor A method for reading the barometric pressure surrounding a vehicle and manifold absolute pressure from an engine utilizing a manifold absolute pressure sensor and a solenoid to vent the sensor to atmosphere as controlled by an electronic control system fo... | 11/22/1988 |
| 4600993 | Measuring barometric pressure with a manifold pressure sensor in a microprocessor based engine control system A method of measuring barometric pressure with a manifold pressure sensor (62) in a microprocessor based engine control system utilizes known engine operating conditions to interrogate the sensor. Also on engine turn-off, a power latch signal (158) is gen... | 07/15/1986 |
| 4590563 | Method and apparatus for controlling internal combustion engine A single pressure sensor is provided to measure the air pressure in the intake manifold of a fuel injection engine. An electronic control unit having a microcomputer is provided to control the fuel amount and ignition timing in accordance with various eng... | 05/20/1986 |
| 4558674 | Knock control apparatus equipped with altitude compensation function A knock control apparatus equipped with an altitude compensation function is disclosed. The apparatus comprises a knock sensor fitted to an internal combustion engine and detecting the mechanical oscillation of the engine; a background signal detection ci... | 12/17/1985 |
| 4416239 | Electronic control system for an internal combustion engine with correction means for correcting value determined by the control system with reference to atmospheric air pressure An electronic engine control system has a pressure sensor communicating both to the intake manifold and the ambient air via a valve means selectively introducing either the intake vacuum or the ambient air into the pressure sensor. The control system furt... | 11/22/1983 |
| 4385606 | Ignition timing regulating device for internal combustion engine An ignition timing regulating device for use in an internal combustion engine for regulating the ignition timing of the engine depending on the pressure of ambient atmosphere. Based on the fact that the pressure in the intake manifold of the engine is equ... | 05/31/1983 |
| 4307691 | Ignition timing control system for internal combustion engine There is disclosed an ignition timing control system for an internal combustion engine which comprises a reference ignition signal generator, advance means for leading the ignition timing according to the number of engine revolutions, control means for co... | 12/29/1981 |
| 4271797 | Internal combustion engine control system Electrical circuitry including a single absolute pressure transducer that is arranged to be exposed to substantially atmospheric pressure during a selected associated internal combustion engine operating condition produces an electrical pressure value ind... | 06/09/1981 |
| 4015565 | Spark-advance control apparatus for internal combustion engine An apparatus for controlling spark advance in an internal combustion engine of an automotive vehicle, characterized by a circuit arrangement which is operative to detect the angular speed of rotation of the engine output shaft in a digital fashion and pro... | 04/05/1977 |
| 4009699 | Digital ignition spark timing angle control with read only memory A read only memory is pre-programmed to produce an output binary signal representation of a predetermined ignition spark timing angle based upon the instantaneous value of both of two selected engine operating parameters at each of a plurality of respecti... | 03/01/1977 |