Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 5657346 | Transmission line driver test integrity circuit The apparatus detects error in transceivers of individual modules connected to a communication network, the network being a two-line network. The apparatus comprises a reference voltage source to output a first and second reference voltage value in respon... | 08/12/1997 |
| 5621220 | Apparatus for evaluating measuring values An apparatus evaluates measuring values from a laminar material, wherein the laminar material is moving in a single plane in a predetermined direction, the laminar material being moved also being under test. The apparatus comprises a measuring platform wh... | 04/15/1997 |
| 5611042 | Data error detection and correction for a shared SRAM An apparatus for correcting errors in information read from a memory unit, comprises a first and second memory, where primary and backup information are stored in predetermined addressable locations. The primary information and the backup information in c... | 03/11/1997 |
| 5598521 | Directly connected display of process control system in an open systems windows environment In a display for a process control system, the display can be generated by one of two different sources, but is controlled by only one of them. A process control system network provides a first source of display, while a windowing system provides a second... | 01/28/1997 |
| 5596147 | Coplanar pressure sensor mounting for remote sensor A pressure transmitter comprises a first housing having a first and second diaphragm for receiving a first and second process fluid under a first and second pressure, respectively. The first and second diaphragm is deflected in response to the first and s... | 01/21/1997 |
| 5576541 | Apparatus for measuring the basis weight An apparatus for measuring the basis weight of a web-shaped material under test comprises a radioactive ଲ radiation source on one side of the material under test and a ଲ radiation detector on the other side of the material under test. For focu... | 11/19/1996 |
| 5574638 | Method of optimal scaling of variables in a multivariable predictive controller utilizing range control A process control system which includes at least one manipulated variable and at least one controlled variable, provides a method for robust control of a process. Predetermined constraints of the manipulated variables and the controlled variables, and the... | 11/12/1996 |
| 5561599 | Method of incorporating independent feedforward control in a multivariable predictive controller A process control system having a feedback controller, at least one manipulated variable and one controlled variable with a feedforward loop is provided. Independent feedforward control is incorporated into the feedback controller by defining a feedforwar... | 10/01/1996 |
| 5530844 | Method of coupling open systems to a proprietary network An interface provides a path to transfer data from a proprietary network to an open system. The proprietary network includes at least one module central processing unit (CPU) and a module memory associated therewith operatively connected to the proprietar... | 06/25/1996 |
| 5499188 | Flexible method for building a recipe in a process control system A process plant has a process control system and a plurality of production lines, each production line having a predetermined equipment configuration. The process control system further includes a controller for interfacing to each production line. The pr... | 03/12/1996 |
| 5458432 | Unit tray hold down mechanism The hold down apparatus securely engages a unit onto a tray. The tray includes an opening having a front block on the underside of the tray at the opening. The front block also includes a pin. The apparatus comprises a housing having an internal space and... | 10/17/1995 |
| 4860280 | Apparatus and method for a secure and diagnosable antijabber communication circuit In order to prevent `jabber`, the uncontrolled transmission of messages on a communication channel, an antijabber timing unit is frequently used to determine whether a message on the communication channel exceeds the maximum permitted length of time. The ... | 08/22/1989 |
| 4841286 | Apparatus and method for detection of an open thermocouple in a process control network In a process control network, apparatus and method for periodic testing of a thermocouple element includes a switching mechanism that inserts a circuit with known parameters in series with the thermocouple. Voltages levels with and without the inserted ci... | 06/20/1989 |
| 4521851 | Central processor A central processor for a general-purpose digital data processing system. The processor has a pair of caches, an operand cache for operands and an instruction cache for instructions, as well as a plurality of execution units, where each execution unit exe... | 06/04/1985 |
| 4488001 | Intellectual properties protection device A device for deciphering encoded information is disclosed which comprises logic elements which combine a key input to implement a predetermined set of boolean transformations thereby yielding a corresponding set of translation terms. The translation terms... | 12/11/1984 |
| 4486855 | Activity detector usable with a serial data link An activity detector device detects the presence or absence of information transmission over a serial data link between a computer system and a peripheral device. If a presence of a data signal exists as determined by the activity detector, the data signa... | 12/04/1984 |
| 4477925 | Clipped speech-linear predictive coding speech processor The present invention relates to a speech recognition system and the method therefor, which analyzes a sampled clipped speech signal for identifying a spoken utterance. An input signal representative of the spoken utterance is passed through a clipper to ... | 10/16/1984 |
| 4408342 | Method for recognizing a machine encoded character An optical character recognition system and method therefor is disclosed for reading a machine encoded character font, such as the E13B magnetic ink character (MICR) font. The digitized data of an optical scan band of the document to be read is read by an... | 10/04/1983 |
| 4392226 | Multiple source clock encoded communications error detection circuit This invention relates to an error detection circuit for detecting errors in a recovered clock signal from a self-clocking digital data signal. A first flip-flop is alternately set and reset by the recovered clock signal and by a clock source of supposedl... | 07/05/1983 |
| 4355856 | Low insertion force connector using non-noble metal contact plating An electrical connector permits the use of non-noble metals by providing mechanical advantage in obtaining high contact force with low insertion force. A pin is utilized as a cantilever beam to provide high contact force. A carrier, which is activated by ... | 10/26/1982 |
| 4355398 | Real time clock recovery circuit This invention relates to a real time clock recovery circuit. The clock recovery circuit requires three inputs, a bit serial data received input (BSD), a quarter bit delayed (QBT) and a three quarter bit delayed (TQBT) signal. The three inputs are derived... | 10/19/1982 |
| 4305124 | Pipelined computer A pipelined computer which executes high level language instructions is disclosed. The pipelined computer includes a memory for storing the high level language instructions therein. A plurality of microprogrammed digital computers are coupled in parallel ... | 12/08/1981 |
| 4301379 | Latching Schmitt trigger circuit A basic Schmitt trigger circuit is modified with additional circuit components for a two-input bistable circuit (latch). The latching Schmitt trigger circuit exhibits enhanced operating characteristics, such as fast and reliable switching between stable s... | 11/17/1981 |
| 4291366 | Switching regulated power supply A switching regulated power supply operates over a broad range of input voltage and frequency, and outputs direct current power for computer equipment and the like. The power supply can be paralleled with identical power supplies, thereby satisfying any p... | 09/22/1981 |
| 4177455 | Electrically configurable high-low decoder An electrically configurable decoder including selectively configurable combinations of a plurality of basic decode circuits. The electrically configurable decoder includes a plurality of mode selection inputs, a plurality of address inputs, a plurality o... | 12/04/1979 |