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| Number | Title | Issue Date |
| 6685819 | System and method for removing a solution phase metal from process liquor A galvanic cell system (50) in fluid communication with a dewatering system (40) of an inhibited oxidation scrubber (20) removes an oxidation catalyst, i.e., solution phase iron (98), from the process liquor (42) produced by the dewatering system (40) and... | 02/03/2004 |
| 6505204 | Engineering services coordinating system and method therefor A system (100) for coordinating engineering services (102) is provided. The system (100) uses a hyperdatabase (108) to encompass a CAE application library (122) for each CAE application program (120) used to provide the engineering services (102). Within ... | 01/07/2003 |
| 6452948 | Method for baud-clock phase synchronization in a TDMA digital communications system and apparatus therefor A time division multiple access digital communications system (12) is provided. The system (12) has a base station (14) configured to generate a receive baud clock (86) and has a receiver (18) and a transmitter (20). The system also has a subscriber unit ... | 09/17/2002 |
| 6442217 | Digital communication receiver with digital, IF, I-Q balancer A communication system (10) includes a transmitter (12) which induces in a communication signal (16), a first component of in-phase to quadrature phase (I-Q) imbalance and a receiver (14) which adds a second component of I-Q imbalance. A digital, intermed... | 08/27/2002 |
| 6431967 | Apparatus and buffing element for uniformly reconditioning digital recording discs An apparatus (46) for reconditioning a protective surface (30) of an optically-read digital recording disc (20) includes a turntable (48) configured to receive the disc (20) and a first motor (52) for rotating the turntable (48) and the disc (20). The app... | 08/13/2002 |
| 6392500 | Rotationally invariant digital communications A digital communications system (10) employs a rotationally invariant phase point constellation (80, 80', 80") in a modulator (12) thereof and a corresponding carrier phase acquisition phase locked loop (56, 66, 74, 76, 78) in a demodulator (14) thereof. ... | 05/21/2002 |
| 6366619 | Constrained-envelope transmitter and method therefor A constrained-envelope digital-communications transmitter circuit (22) includes a binary data source (32) that provides an input signal stream (34) to a modulator (77,77'). The modulator (77,77') includes a pulse-spreading filter (76) that filters a phase... | 04/02/2002 |
| 6363124 | Phase-noise compensated digital communication receiver and method therefor A phase-noise compensated digital communication receiver (40, 40', 40") includes a carrier tracking loop (56) which imposes a transport delay on a carrier tracking loop signal (60) before that signal (60) is fed back upon itself. The carrier tracking loop... | 03/26/2002 |
| 6362540 | Expandable hybrid electric generator and method therefor An expandable hybrid electric generator (20) includes a number of power blocks (22) that may be nearly identical to one another. The power blocks (22) are controlled by a master controller (34), and an external supervisor (30) performs some master control... | 03/26/2002 |
| 6362701 | Digital communications modulator having an interpolator upstream of a linearizer and method therefor An IC modulation processor (28) may be configured to operate in a single chip mode to accommodate baud rates up to a maximum clock rate for the processor (28) and in a dual chip mode to accommodate baud rates in excess of the maximum clock rate. The IC mo... | 03/26/2002 |
| 6337606 | Digital communications modulator having a modulation processor which supports high data rates An IC modulation processor (28) may be configured to operate in a single chip mode to accommodate baud rates up to a maximum clock rate for the processor (28) and in a dual chip mode to accommodate baud rates in excess of the maximum clock rate. The IC mo... | 01/08/2002 |
| 6236685 | Pragmatic trellis-coded digital communication with multi-stage branch metrics A pragmatic trellis-code modulated digital communications system (20) is provided, in which a demodulator (24) is configured to demodulate a quadrature input signal (62) into an estimation (64) of digital data (54) conveyed thereby. The demodulator (24) i... | 05/22/2001 |
| 6220387 | Exhaust muffler An exhaust muffler (20) for an internal combustion engine (25) includes a tapered tube (28) and an outer tube (40) axially aligned with and surrounding the tapered tube (28) so that an annular passage (42) is formed between the tapered tube (28) and the o... | 04/24/2001 |
| 6222878 | Communication system with end-to-end quadrature balance control A communication system (10) includes a transmitter (20) having programmable signals (46, 58, 60, 80) which can be used to adjust transmitter-caused quadrature-phase signal imbalances. A receiver (18) of the system (10) is remotely located from the transmi... | 04/24/2001 |
| 6204747 | Safety devices for electrical circuits and systems A protective device for minimizing fire danger in the use of electrical circuits comprises a unit having a mechanically biased conductive element in series with the circuit, and maintained in position under tension by a fusible material such as a Cerro al... | 03/20/2001 |
| 6171920 | Method of forming heterojunction bipolar transistor having wide bandgap, low interdiffusion base-emitter junction A heterojunction bipolar transistor (20) is provided with a silicon (Si) base region (34) that forms a semiconductor junction with a multilayer emitter (38) having a thin gallium arsenide (GaAs) emitter layer (36) proximate the base region (34) and a dist... | 01/09/2001 |
| 6151368 | Phase-noise compensated digital communication receiver and method therefor A phase-noise compensated digital communication receiver (40, 40', 40") includes a carrier tracking loop (56) which imposes a transport delay on a carrier tracking loop signal (60) before that signal (60) is fed back upon itself. The carrier tracking loop... | 11/21/2000 |
| 6141389 | Digital tuner A digital communications modulator (10) includes a low speed IC (12) which performs encoding, symbol generation, pulse shaping, interpolation, linearization, and small amounts of frequency tuning. A complex, baseband digital communications signal (34) is ... | 10/31/2000 |
| 6028948 | Surface anomaly-detection and analysis method A method (30) is provided for the detection and analysis of anomalies (32) in a road surface (36). An image (34) of the road surface (36) is obtained (82) wherein traffic control markings (76) are masked (88). The image (34) is filtered (90) and a pixel m... | 02/22/2000 |
| 6005897 | Data communication system and method therefor A digital communication system (20) communicates using a polar amplitude phase shift keyed (P-APSK) phase point constellation (70, 70'). Pragmatic encoding and puncturing is accommodated. The pragmatic encoding uses the P-APSK constellation (70, 70') to s... | 12/21/1999 |
| 5910967 | Pragmatic encoder and method therefor A communication system (11) uses concatenated coding in which an inner code is configured to match the needs of an outer code. The inner code is implemented through a pragmatic trellis coded modulation encoder (18) and decoder (34). A parser (50) of the e... | 06/08/1999 |
| 5525114 | Resiliently biased endless driven sprocket chain An endless driven sprocket chain (10) includes inner links (24) which couple to outer links (26) through a resilient bushing (50). A pin (42) having a shaft (44) with a hexagonal cross sectional shape mates with a corresponding hole in outer link plates (... | 06/11/1996 |
| 5511533 | Adjustable hydraulic stabilizer for a bow An adjustable stabilizer device for use on a bow to reduce and delay torque and other detrimental forces resulting from shooting thereof, including a housing containing a hydraulic component threadably carried therein. The hydraulic component includes a w... | 04/30/1996 |
| 5479744 | Movable utility greenhouse A utility greenhouse (10) has a frame (30) comprised of electrical metal tubing (EMT) sections. Main frame members (12) bear the majority of the building's load. Main frame members (12), long side members (14) and short side members (16) all embed into th... | 01/02/1996 |
| 5466934 | Method and apparatus for identification of crystallographic defects An imaging apparatus (10) includes a scanning electron microscope (12) which is controlled to bombard numerous points (62) of a material sample (24) with an electron beam (18). Backscatter diffraction patterns are collected by an image collection system (... | 11/14/1995 |
| 5465388 | Emergency cellular radiotelephone and method therefor An emergency portable cellular radiotelephone (10) communicates with the one of A and B cellular systems that offers the best signalling. The radiotelephone may be energized from an internal battery (50) or an external power source (62). A single switch (... | 11/07/1995 |
| 5454182 | Black powder firearm A black powder firearm (10) is easily disassembled and has interchangeable barrels (12) . Barrels (12) attach to a receiver (24) at a bore (86) in the receiver (24). A lug (50) attaches to the barrel (12) and bolts to the receiver (24) through a hollow lu... | 10/03/1995 |
| 5410724 | System method for identifying radio stations to which tuners are tuned An antenna (26) projects a detection zone (28) across a non-intersection portion (16) of a road (10). A scanning receiver (32) couples to and is controlled by a data logging computer (34). This computer (34) commands the receiver (32) to look for one FM l... | 04/25/1995 |
| 5394897 | Tent system A tent system interconnects any number of stand-alone tents (12) to form a tent network (10). The tents (12) are interconnected through connection modules (14). The tents (12) include at least two and preferably three openings (30) which serve as doorways... | 03/07/1995 |
| 5386202 | Data communication modulation with managed intersymbol interference A communication system (10) includes a modulation section (12) and a demodulation section (14). The modulation section (12) performs frequency modulation in accordance with a frequency trajectory signal (28, 30, 32). An intersymbol interference (ISI) pred... | 01/31/1995 |
