Quotables
"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 4580130 | Rotary encoder A rotary encoder used for measuring the rotational velocity, for example, of a rotating disk provided with reflecting surfaces and non-reflecting surfaces which are formed alternately on its periphery with a pitch l. The encoder includes one output optica... | 04/01/1986 |
| 4580047 | Displacement measuring device utilizing an incremental code A displacement measuring device, using an incremental code, which includes a coding member (22) resting on the object (21) to be measured and having a coding section for generating such signals that a sensing element can discriminate the signals as 0 or 1... | 04/01/1986 |
| 4580046 | Displacement measuring device utilizing an incremental code A displacement measuring device, using an incremental code, which includes a coding member (22) resting on the object (21) to be measured and having a coding section for generating such signals that a sensing element can discriminate the signals as 0 or 1... | 04/01/1986 |
| 4559524 | Rotary encoder A rotary encoder for measuring a rotary angle and the number of rotation, which consists principally of a rotary shaft, a rotary slit disk fitted to the rotary shaft and a light emitting element and detectors opposing each other while interposing the rota... | 12/17/1985 |
| 4554450 | Device for angle of rotation determination In a device for determining the angle of rotation of a rotating member by use of a perforated disk which corotates with the rotating member and intermittently interrupts a continuous beam of light directed at the perforations of the disk, an improvement c... | 11/19/1985 |
| 4491826 | Incremental digital converter An incremental digital converter for converting two phase displaced signals of a pulse generator, which signals represent the position and direction of an object moved in two opposite directions, to a parameter which represents the position digitally. The... | 01/01/1985 |
| 4476457 | Rotary encoder A rotary encoder for producing a pair of pulse trains with a desired phase difference therebetween is provided. The encoder comprises a rotary plate provided with a plurality of slits arranged in the form of a ring and a stationary slit plate provided wit... | 10/09/1984 |
| 4443787 | Apparatus for measuring the angular position of a shaft An apparatus is disclosed, for measuring the angular position of a shaft of a machine at the occurrence of an event originating from the operation of the machine, relative to a reference position of the shaft. The apparatus comprises a first sensor respon... | 04/17/1984 |
| 4410798 | Incremental optical encoder system with addressable index The circuitry required to obtain a ing that of the quadrature pair, the bits of a multibit binary word are gated with a coarse index taken from the code disc. The multibit binary word includes square waves already available in the multiplier and an additi... | 10/18/1983 |
| 4306220 | Interpolation utilization apparatus An apparatus is disclosed for processing the output of an incremental measuring device of the type which provides a periodic analog output signal. The analog output signal is applied to a trigger circuit to produce a square wave signal which is applied as... | 12/15/1981 |
| 4266215 | Reversible incremental encoding method and apparatus Two-phase logic signals from a reversible shaft encoder or like device provide count occurrence pulses and a count direction logic signal to control incrementing and decrementing of a counting means. One count occurrence pulse is omitted each time the cou... | 05/05/1981 |
| 4194184 | Bidirectional digital position encoder A digital rotary shaft position encoder includes a disk having a plurality of digitally encoded apertured tracks. The successive binary characters read from the tracks each have at least one 1 and comprise a repeating code having a different order of char... | 03/18/1980 |
| 4123750 | Signal processor for position encoder A signal processor for an incremental encoder to provide output signals representing absolute position in any of a plurality of selectable scales and formats. In particular, incremental pulse signals from an incremental encoder are applied to a dedicated ... | 10/31/1978 |
| 4117320 | Digital measuring instruments A digital instrument produces a continuous digital readout representative of the linear movement of a member positioned by a rotatable shaft. The instrument comprises equally spaced markings formed on an element carried by a bushing intended to be secured... | 09/26/1978 |
| 4065720 | Electronic channel selector An electronic channel selector is described for providing a tuning signal at a frequency corresponding to a selected channel. A logic circuit cooperates with an uncoded rotary switch for providing control signals to an up/down counter which counts up or d... | 12/27/1977 |
| 4047024 | Photoelectric disc reader with alternate reading locations A photoelectric pulse initiator includes a rotating pattern having a single track of indicia scanned by two optoelectronic sensors. The sensors having different mounting relationships for scanning different indicia patterns. Alternate impulses from the se... | 09/06/1977 |
| 3998088 | Testing apparatus for incremental shaft encoder An apparatus for testing an incremental shaft encoder in which the encoder is placed upon a rate table together with a gyroscope to permit coincident rotation. Every time the shaft of the incremental shaft encoder turns through a complete cycle, the leadi... | 12/21/1976 |
