Patents Represented by Attorney Meschkow & Gresham
  • Patent number: 6169467
    Abstract: A TE0&ggr;&dgr; mode dielectric resonator (12) includes a cylindrical dielectric disk (32, 32′, 32″) having top and bottom ends (20, 22) spaced apart by a closed curve wall (24). The dielectric disk has an effective dielectric constant greater than 40. An axially aligned hole (36) is formed through the disk (32) between the top and bottom ends (20, 22). A conductive wall (34, 34″) is formed at or slightly beyond the wall (24) but does not cover the top and bottom ends (20, 22). The hole (36) has a preferred diameter between 0.21 and 0.4 times the diameter of the disk (32, 32′, 32″). The disk may be configured as a heterogeneous composite of dissimilar materials which exhibit increasing dielectric constant at increasing radial distance and increasing Q at decreasing radial distance.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: January 2, 2001
    Inventor: El-Badawy Amien El-Sharawy
  • Patent number: 6154510
    Abstract: A digital communication receiver (10) includes a magnitude-based symbol synchronizer (38) which separates complex phase attributes from magnitude attributes. The phase attributes are processed by a phase processor (78) which identifies clock adjustment opportunities. The magnitude attributes are processed by a magnitude processor (76) that generates a phase error estimate signal (82), which in turn drives a clock generator (24) in a phase locked loop (54) to achieve symbol synchronization in a non-data-directed manner. An additional adjustment feedback loop (114, 128) includes a phase error offset generator (52) and operates in conjunction with the phase locked loop (54) to allow the phase locked loop (54) to achieve lock and a robust operating point in spite of distortion in a received input analog signal (12).
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: November 28, 2000
    Assignee: Sicom, Inc.
    Inventors: Bruce A. Cochran, Ronald D. McCallister
  • Patent number: 6151527
    Abstract: Electrodes for stimulating living tissue such as vaginal, anal, clitoral, penile, and scrotal tissue are shown. Electrical stimulation to such areas is intended to induce excitation and orgasm in either females or males, particularly where frigidity or impotence is a problem. Four embodiments of the electrode apparatus include a flexible tube shaped base and an electrode either in the form of a loop or a stem coupled to the base. The electrode is formed from one of an electrically-conductive solid cord, an electrically-conductive tube, and an insulated conductor cable. An electrical contact at one end of the electrode allows the electrode to be connected to an electrical source. Auxiliary members such as conductive beads, conductive endpieces, conductive or nonconductive tube shaped coverings, and vibrators are added to any of the electrode apparatuses to impart specific stimuli in specific regions of the user's anatomy.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: November 21, 2000
    Inventor: David Boutos
  • Patent number: 6151368
    Abstract: 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 (56) includes a phase rotator (58) that rotates a down-converted digital communication signal (50) by a phase determined by a phase-conveying signal (72). A carrier tracking loop signal is obtained from the carrier tracking loop and delayed in a delay element (82) by a duration that compensates for the transport delay. A phase rotator (84) then rotates the delayed carrier tracking loop signal through a phase value determined by the phase-conveying signal (72) to obtain an open-loop phase signal (86) from which data are extracted. Different embodiments of the receiver (40, 40', 40") are provided to accommodate adaptive equalizer (54) issues.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: November 21, 2000
    Assignee: Sicom, Inc.
    Inventor: Bruce A. Cochran
  • Patent number: 6128282
    Abstract: A node controller (30) within a data communication network (22) provides network access for a digital data stream (32). A processor (42) partitions the digital data stream (32) into a constant data rate component (44) having a predictable data rate and a data packet component (46) having an unpredictable data rate. The constant data rate component (44) is then transferred over a first portion (74) of a network data stream (26) reserved for a circuit transmission protocol, and the data packet component (46) is packetized and transferred over a second portion (76) of the network data stream (26) reserved for a packet transmission protocol.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: October 3, 2000
    Assignee: Sicom, Inc.
    Inventors: John M. Liebetreu, Ronald D. McCallister
  • Patent number: 6115909
    Abstract: A ZIF PGA socket tool (42) for releasably coupling a pin grid array (PGA) chip (22) with a "latch-less" zero insertion force (ZIF) socket (20) includes a housing (44), a sled (46), and an actuator (48). The housing (44) is configured to be placed in fixed relation to the ZIF socket (20). The sled (46) includes rails (84) that slidably couple with corresponding grooves (82) in the housing (44). The sled (46) further includes a shoulder (98) configured to abut an edge (40) of the PGA chip (22). The actuator (48) includes a pin (122) that is received by a slotted opening (118) in the sled (46). The pin (122) and the slotted opening (118) form a cooperative relationship such that rotational movement of the actuator (48) produces rectilinear movement of the sled (46) so that the shoulder (98) of the sled (46) imparts a pushing force on the edge (40) of the PGA chip (22).
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: September 12, 2000
    Inventor: Dennis K. Miller
  • Patent number: 6104631
    Abstract: A static RAM memory cell (30) uses cross-coupled enhancement mode, N-channel MOS drive transistors (36) to form a bistable flip-flop. A load circuit (34) couples between I/O ports (40) of the drive transistors (36) and Vcc. For each drive transistor (36), the load circuit includes a depletion mode, N-channel MOS load transistor (54) and a forward biased tunnel diode (32). The drain and gate of the load transistor (54) couple across the anode and cathode of the tunnel diode (32) so that the forward voltage (V.sub.f) of the tunnel diode (32) controls the V.sub.gs transfer curve (56) of the load transistor.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: August 15, 2000
    Assignee: National Scientific Corp.
    Inventors: El-Badawy Amien El-Sharawy, Majid M. Hashemi
  • Patent number: 6104761
    Abstract: A constrained-envelope digital-communications transmitter circuit (22) in which a binary data source (32) provides an input signal stream (34), a phase mapper (44) maps the input signal stream (34) into a quadrature phase-point signal stream (50) having a predetermined number of symbols per unit baud interval (64) and defining a phase point (54) in a phase-point constellation (46), a pulse-spreading filter (76) filters the phase-point signal stream (50) into a filtered signal stream (74), a constrained-envelope generator (106) generates a constrained-bandwidth error signal stream (108) from the filtered signal stream (74), a delay element (138) delays the filtered signal stream (74) into a delayed signal stream (140) synchronized with the constrained-bandwidth error signal stream (108), a complex summing circuit (110) sums the delayed signal stream (140) and the constrained-bandwidth error signal stream (108) into a constrained-envelope signal stream (112), and a substantially linear amplifier (146) amplifies
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: August 15, 2000
    Assignee: SiCom, Inc.
    Inventors: Ronald D. McCallister, Bruce A. Cochran, Bradley P. Badke
  • Patent number: 6097764
    Abstract: A digital communication system (20) communicates using a polar amplitude phase shift keyed (P-APSK) phase point constellation (70, 70', 70"). Pragmatic encoding is accommodated using the constellation (70, 70', 70") to simultaneously communicate both encoded and uncoded information bits (69, 51). The constellation (70, 70', 70") has an even number of phase point rings (74) and equal numbers of phase points (72) in ring pairs (75, 76, 77). Encoded information bits (69) specify secondary modulation and uncoded information bits (51) specify primary modulation. The constellation (70, 70', 70") is configured so secondary sub-constellations (78) include four phase points (72) arranged so that two of the four phase points (72) exhibit two phase angles at one magnitude and the other two of the four phase points (72) exhibit phase angles that are at another magnitude. The difference between the phase angles at different magnitudes within a secondary sub-constellation (78) is constant.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: August 1, 2000
    Assignee: Sicom, Inc.
    Inventors: Ronald D. McCallister, Bruce A. Cochran, John M. Liebetreu
  • Patent number: 6095434
    Abstract: A portable automatic misting device (20) uses a misting device assembly (38) to automatically disperses a mist (36). The misting assembly (38) includes a hollow cylinder (40) that forms a liquid reservoir (50) that is in fluid communication with a one-way valve (76) that permits liquid flow into the reservoir (50). The reservoir (50) has fluid communication with a misting nozzle (34) through a hollow plunger rod (28). A plunger (42), a spring (48) and a portion of the hollow plunger rod (28) are located inside the hollow cylinder (40). The spring (48) is biased to move the plunger (42) and the hollow plunger rod (28) to automatically shrink the liquid reservoir (50).
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: August 1, 2000
    Assignee: Arizona Mist, Inc.
    Inventor: Leonard Montenegro
  • Patent number: 6081690
    Abstract: A bias compensating remote audience survey system (34) is configured to identify radio stations (162) to which tuners (24) are tuned. The tuners (24) have predetermined signals (26) emitted therefrom. The survey system (34) employs a method (152) of compensating for a station bias, or preference, toward or against one or more of radio stations (162). The method (152) includes measuring durations (62) over which the predetermined signals (26) are received by the survey system (34). The durations (62) are then combined by averaging to form a station average detection length (ADL) value (74) specific to one of the radio stations (162). The station ADL value (74) is compared to a multi-station ADL parameter (86). A sensitivity level (146) for the one radio stations (162) is adjusted in response to the comparison to compensate for station bias.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: June 27, 2000
    Inventor: David G. Worthy
  • Patent number: 6078625
    Abstract: 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 encoder (18) distributes fewer than one user information bit per unit interval (66) to a convolutional encoder (58) which generates at least two convolutionally encoded bits for each user information bit it processes. Exactly one of the convolutionally encoded bits is phase mapped (56) with at least two user information bits during each unit interval (66). The decoder (34) detects a frame sync pattern (48) inserted into the user information bits to resolve phase ambiguities. Phase estimates are convolutionally decoded (100) to provide decoded data estimates that are then used to selectively rotate the phase estimates prior to routing the phase estimates to a slice detector (118).
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: June 20, 2000
    Assignee: Sicom, Inc.
    Inventors: Ronald D. McCallister, Bruce A. Cochran, John M. Liebetreu
  • Patent number: 6077817
    Abstract: A firearm bore cleaning agent and method are provided for detaching fouling residue from a bore of a firearm. The fouling residue includes carbon and metal residue, such as copper and lead, and the carbon residue acts to bond the metal residue to the bore. The firearm cleaning agent comprises the combination of a hydrocarbon solvent, such as butyl or amyl lactate, and an electrical neutralizing agent, such as hydrocarbon citrus distillate. The hydrocarbon solvent is configured to detach the metal residue from the bore by dissolving the carbon residue and the electrical neutralizing agent is configured to bond with positive ions of the metal residue to prevent the metal residue from rebonding to the bore.
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: June 20, 2000
    Assignee: Heritage Institute, Inc.
    Inventor: Paul R. Pomp
  • Patent number: 6073983
    Abstract: A device (20) for the retrieval of a ferromagnetic object (22) from a remote area is provided. The device (20) contains a retractable tape measure (24) and a magnetic gripping head (26). The tape measure (24) has a blade (30) with a first end (64), an opposing second end (66), a longitudinal axis (68) extending between the first and second ends (64, 66), and a zero hook (32) coupled to the first end (64). The gripping head (26) has a housing with a gripping opening (40) in a face (42) thereof and a coupling opening (62) in another face (70) thereof. The gripping head (26) also has a magnet (38) within the housing (34). The housing (34) and magnet (38) are configured so that a portion of the magnet (38) protrudes through the gripping opening (40) to effect magnetic engagement with the ferromagnetic object (22) during retrieval.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: June 13, 2000
    Inventor: James A. Schroeder
  • Patent number: 6050068
    Abstract: A protective eye covering (20) for a domestic animal (24) includes a flexible material (48) for covering the eyes (34) and adjacent portions of the animal's head (22). The flexible material (48) has a V-shaped lower edge (52) trimmed with a fabric portion (118) and configured to be positioned about an upper muzzle region 40 of the animal. A pair of darts (78, 80) extend from the V-shaped lower edge (52) to form convex portions (82) configured for location over the eyes (34). A pair of ear openings (84, 86), trimmed with fabric portions (110, 114), are located proximate an upper edge (50) of the flexible material (48). A dart (88) and reinforcement strap (98) extend from the upper edge (50) between the ear openings (84, 86) to form a stiff pocket (92) configured for location over the forelock (32) of the animal (24).
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: April 18, 2000
    Inventor: Houston R. White, Jr.
  • Patent number: 6048248
    Abstract: An apparatus for holding a quantity of stuffing material includes a pliable fabric shell having an opening that facilitates the insertion and removal of stuffing material. The opening is releasably sealed with sealing elements located on a plurality of flaps that surround the opening. The apparatus is constructed such that the flaps and the opening are of approximately the same length. The flaps extend within the shell and the sealing elements engage to seal the opening. When the shell is sealed, the flaps and the sealing elements are hidden from view and physically unexposed.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: April 11, 2000
    Assignee: Cats With An Attitude, Inc.
    Inventor: Sharon A. Ritchey
  • Patent number: 6044928
    Abstract: A stepstool (20) configured for mounting on a vehicular tire (22) includes a support frame configured to rest against an outer surface (38) of the tire (22). The support frame includes a first upright support (24), a second upright support (26), and a third support (28) coupled to each of the first and second upright supports (24, 26). A platform (30) is attached to the support frame. A retaining bar (36) is configured to rest against an inner surface (40) of the tire (22). Chains (32 and 34) link the retaining bar (36) to each of the first and second upright supports (24, 26). The chains (32 and 34) are directed over an upper circumferential surface (83) of the tire and wrap around the upper circumferential surface (83) to hold the platform (30) securely on the tire (22).
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: April 4, 2000
    Inventors: Bruce Law, John E. Toner
  • Patent number: 6045112
    Abstract: A vibration isolation system (20) reduces vibrations produced by an operating electric motor (22). A motor retainer ring (24) fits into a motor retaining ring isolator (40) which is placed into a mounting surface opening (52) such that protrusions (48) contact a mounting surface (50). An upper motor cover (54) and a lower motor cover (60) are positioned to surround motor (22) while protruding ridges (62) space the interior surface away from motor (22). Fasteners (32) fit through retainer mounting holes (30) and attach to threaded holes (38) such that protrusions (58) of the upper motor cover (54) contact the mounting surface (50).
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: April 4, 2000
    Assignee: Calsonic North America, Inc.
    Inventor: Robert Clark Kirkwood
  • Patent number: D433632
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: November 14, 2000
    Inventor: Tracy Bender
  • Patent number: D434816
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: December 5, 2000
    Inventor: Robert J. Jobst