Celebrity Inventors
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 |
| 5744930 | Universal battery compartment A battery compartment (12) adapted to accommodate any of several different types of batteries (30, 32, 34). The compartment (12) includes a hollow region having a length equivalent to that of one or more batteries (31, 33, 35) and includes a positive cont... | 04/28/1998 |
| 5701645 | Acoustic wave device manufacturing method A method for making an acoustic wave device. The method has steps of providing a substrate suitable for acoustic wave devices and processing the substrate to provide a patterned metallization thereon. The patterned metallization includes an acoustic wave ... | 12/30/1997 |
| 5696797 | Demodulator with baseband doppler shift compensation and method An apparatus and accompanying method for demodulating with baseband Doppler frequency shift compensation. An RF section (20) down-converts received data communication signals (12) to baseband. A/D converters (24, 26) digitize I, Q quadrature baseband sign... | 12/09/1997 |
| 5696423 | Temperature compenated resonator and method A temperature compensated resonator (15) and method for making the temperature compensated resonator (15). The temperature compensated resonator (15) has a substrate (110) including a cavity (120, 160) and a resonator layer (150). A bonding medium (159, 1... | 12/09/1997 |
| 5661492 | Personal alarm location system and method A population of locatable personal detection units (PDUs) (20) are worn by users. Any number of locators (14) are placed at known locations within an area (10) where the users tend to be. When an alarm event for an individual user occurs, a request signal... | 08/26/1997 |
| 5654680 | Saw-based ladder filter including multiple coUpling coefficients (K2), Method therefor and radio incorporating same A full duplex radio (10) having improved properties obtained by using surface acoustic wave (SAW) filters (92, 100, 100') having asymmetric frequency responses (76', 76", 140). The filters (92, 100, 100') are composed of series (501, 501 | 08/05/1997 |
| 5644580 | Boundary-scan testable system and method A system (10) includes any number of Boundary-Scan integrated circuits (28), a common bus (14), and a Boundary-Scan master (22). The integrated circuits (28) include mode selection logic (58) that isolates pins (30, 32) from core logic (34) during Capture... | 07/01/1997 |
| 5638036 | Acoustic wave ladder filter with unequal series and shunt transducer periodicities and method of making A method and apparatus for a ladder filter (300, 400) incorporating same. The filter (100) includes a substrate and a first series resonator (100, 305, 403) disposed on the substrate and electrically coupled in series between the first electrical port (30... | 06/10/1997 |
| 5635883 | Acoustic wave filter with filter-shaping element and method An acoustic wave filter (200, 300) having a substrate for supporting propagation of acoustic waves, and first (220, 315), second (235, 330) and third (210, 310) acoustic wave transducers disposed on the substrate. The first acoustic wave transducer (220, ... | 06/03/1997 |
| 5623575 | Excitation synchronous time encoding vocoder and method A method for excitation synchronous time encoding of speech signals. The method includes steps of providing an input speech signal, processing the input speech signal to characterize qualities including linear predictive coding (LPC) coefficients, epoch l... | 04/22/1997 |
| 5621737 | Communication system with link margin control and method In a communication system (10), a receiving node (14) estimates bit error rate (BER) and the accuracy of the BER estimate based upon a single burst of a data communication signal (12). An appropriate decision rule (92) is selected (90) in response to the ... | 04/15/1997 |
| 5617065 | Filter using enhanced quality factor resonator and method A filter (500) including a first resonator (505) coupled in shunt with a first port (507), a first bridging network (510) coupled between the first port (507) and a first node (509), a second resonator (515) coupled in shunt with the first node (509) and ... | 04/01/1997 |
| 5606322 | Divergent code generator and method A method and corresponding apparatus (10) for generating a pseudo-random number. The method has steps of generating a first bit stream from a number generator (16, 35), combining a predetermined number with the first bit stream to provide a second bit str... | 02/25/1997 |
| 5606313 | Low power addressable data communication device and method An electronic tag (10) receives a data message (18) that has a wake-up section (20) followed by a session section (22). The interrogation signal which carries the data message encodes the wake-up section (20) differently from the session section (22). A p... | 02/25/1997 |
| 5600287 | Acoustic wave filter with reduced bulk-wave scattering loss, ladder filter incorporating same and method A method and apparatus for an acoustic wave filter (110) with reduced bulk-wave scattering loss and a ladder filter (30, 40) incorporating same. The method includes steps of providing an acoustic wave propagating substrate (111) and disposing a first refl... | 02/04/1997 |
| 5596239 | Enhanced quality factor resonator A high quality factor resonator (15) including a substrate (110) and a resonator layer (150). The resonator layer includes a first electrode (157). The resonator layer (150) is disposed on a surface of the substrate (110). The first electrode (157) is dis... | 01/21/1997 |
| 5579437 | Pitch epoch synchronous linear predictive coding vocoder and method A method for pitch epoch synchronous encoding of speech signals. The method includes steps of providing an input speech signal, processing the input speech signal to characterize qualities including linear predictive coding coefficients and voicing, and c... | 11/26/1996 |
| 5551051 | Isolated multiprocessing system having tracking circuit for verifyng only that the processor is executing set of entry instructions upon initiation of the system controller program A computer (20) includes a hardware memory access enforcer (50) to insure that various independent programs (52, 54) operating on the computer (20) follow isolated processing rules. Each program has its own memory domain (56), which may extend across inst... | 08/27/1996 |
| 5541580 | Body detector A body detector (10) detects when a body (12) is absent from a region (26) being monitored. The body (12) has a different dielectric constant than air. The region (26) is configured as a capacitor (20) in which the body (12), if present, serves as a diele... | 07/30/1996 |
| 5530758 | Operational methods for a secure node in a computer network A computer network (20) including secure nodes (26) and unsecured nodes (28). The secure nodes (26) may communicate private data without compromising security provisions. The secure nodes (26) include a security kernel (36) that implements communication s... | 06/25/1996 |
| 5528634 | Trajectory directed timing recovery In a digital demodulator (10) a single sampling moment (28) occurs within each symbol (22). A data estimator (34) identifies a data code and a phase error for each symbol. The data from three symbols (22) are compared to identify whether a phase trajector... | 06/18/1996 |
| 5514626 | Method for reducing heterostructure acoustic charge transport device saw drive power requirements A HACT device employing a thin-film overlay of a more strongly piezoelectric material can operate as a delay line and as a tapped delay line, or transversal filter, while requiring less total power for the SAW clock signal. The increased electrical potent... | 05/07/1996 |
| 5504834 | Pitch epoch synchronous linear predictive coding vocoder and method A method for pitch epoch synchronous encoding of speech signals. The method includes steps of providing an input speech signal, processing the input speech signal to characterize qualities including linear predictive coding coefficients and voicing, and c... | 04/02/1996 |
| 5497400 | Decision feedback demodulator with phase and frequency estimation A data communication receiver (10) uses a decision feedback demodulator (32) to remove data from a received signal. Quadrature components of the received signal define a received phase. The received phase is rotated (46) by an amount predicted to compensa... | 03/05/1996 |
| 5493309 | Collison avoidance communication system and method In a collision avoidance communication system and method, equipped aircraft (12) and ground control stations (18) which represent nodes of an RF communication network (22). A radar system (16) determines locations of equipped aircraft (12) and unequipped ... | 02/20/1996 |
| 5481231 | Lumped element four port coupler A four port coupler includes a first port adapted to impedance match to a first impedance Zo, a second port adapted to impedance match to a second impedance Z1 different than the first impedance, a third port adapted to impedance mat... | 01/02/1996 |
| 5479559 | Excitation synchronous time encoding vocoder and method A method for excitation synchronous time encoding of speech signals. The method includes steps of providing an input speech signal, processing the input speech signal to characterize qualities including linear predictive coding (LPC) coefficients, epoch l... | 12/26/1995 |
| 5471178 | Ladder filter and method for producing conjugately matched impedance A bandpass filter and a method for making a bandpass ladder filter having a center frequency, a first port and a second port. The method has steps of providing a first L network having a first connection, a second connection and an inductive impedance at ... | 11/28/1995 |
| 5463361 | Surface acoustic wave filter and method An electronic apparatus for receiving and filtering high frequency waves comprises a sequence of T electro-acoustic transducers each having multiple interdigital electrode fingers and a centerline located equidistant between its outermost electrode finger... | 10/31/1995 |
| 5451913 | Compact MMIC tunable biphase modulator and method An apparatus for providing electronically tunable biphase modulation. The apparatus includes an input for supplying a signal to be modulated and a coupler including first, second, third and fourth ports. The first port is coupled to the input. The apparat... | 09/19/1995 |
| 5446423 | Digital single sideband modulator and method A digital single sideband modulator (10) includes a relatively complex CMOS NCO (14) that drives a relatively simple ECL frequency translator (30). The frequency translator (30) outputs a digital signal that is converted to analog by a D/A (44) and then f... | 08/29/1995 |
| 5442327 | MMIC tunable biphase modulator An apparatus for providing electronically tunable biphase modulation including an input and a first switch having a first output, a second output and a first input coupled to the input. The first switch couples the first input to either the first output o... | 08/15/1995 |
| 5434466 | Acoustic wave filter with reduced bulk-wave scattering loss and method An acoustic wave filter with reduced bulk-wave scattering loss has a center frequency and an associated acoustic wavelength. The filter includes a substrate and a first reflector having a first group of periodically disposed reflective elements. The filte... | 07/18/1995 |
| 5430441 | Transponding tag and method A transponding tag (14) and method for responding with a unique code signal (18) when it receives an interrogation signal (16). The tag (14) waits a random duration before responding to avoid interference with response code signals (18) from other tags (1... | 07/04/1995 |
| 5420853 | Self controlling crossbar switch and method A method and apparatus for switching data between a selected pair of data processing elements. The method involves steps of sending a first service request signal from a first data processing element to a switch, where the first service request signal inc... | 05/30/1995 |
| 5420472 | Method and apparatus for thermal coefficient of expansion matched substrate attachment A radio frequency apparatus desirably includes at least one microelectronic device comprising a substrate including the at least one microelectronic device and a package base for mounting the microelectronic device. The package base includes external inte... | 05/30/1995 |
| 5416468 | Two-tiered system and method for remote monitoring A communication and processing system (10) monitors signals transmitted from personal transmitter units (PTUs 20) to determine whether alarm or emergency conditions have occurred and whether scheduled communications from PTUs (20) are missing. The PTUs (2... | 05/16/1995 |
| 5414614 | Dynamically configurable switched capacitor power supply and method A dynamically configurable switched capacitor power supply and a method for operation thereof. The power supply includes a first dynamically adjustable switched capacitor network having a first input, a first output and including a first plurality of n ma... | 05/09/1995 |
| 5414214 | Resistance heated, sealed microfabricated device package method and apparatus An apparatus (105, 301) for enclosing a microfabricated component (225) includes a package base (120, 405, 910), a package lid (110, 510, 950) and a seal (215) coupled to the package base (120, 405, 910) and to the package lid (110, 510, 950). The apparat... | 05/09/1995 |
| 5373802 | Attachment method and apparatus An apparatus is described which comprises a rigid element having a length greater than a distance separating gunwales of a boat and a pair of notched elements disposed to either end of the rigid element. The notched elements are adapted to releasably enga... | 12/20/1994 |
