Patents by Inventor John Thomas Fessler
John Thomas Fessler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120224296Abstract: A Z-directed capacitor component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained within the PCB. In one embodiment the Z-directed capacitor component utilizes semi-cylindrical metallic sheets. In another embodiment, stack annular metallic disks are used. The Z-directed capacitor component mounts within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided.Type: ApplicationFiled: April 17, 2012Publication date: September 6, 2012Inventors: Keith Bryan Hardin, John Thomas Fessler, Paul Kevin Hall, Robert Aaron Oglesbee
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Patent number: 8198547Abstract: A Z-directed signal pass-through component for insertion into a printed circuit board while allowing electrical connection from external surface conductors to internal conductive planes or between internal conductive planes. The Z-directed pass-through component is mounted within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body.Type: GrantFiled: July 23, 2009Date of Patent: June 12, 2012Assignee: Lexmark International, Inc.Inventors: Keith Bryan Hardin, John Thomas Fessler, Paul Kevin Hall, Brian Lee Nally, Robert Aaron Oglesbee
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Patent number: 8198548Abstract: A Z-directed capacitor component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained within the PCB. In one embodiment the Z-directed capacitor component utilizes semi-cylindrical metallic sheets. In another embodiment, stack annular metallic disks are used. The Z-directed capacitor component mounts within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided.Type: GrantFiled: July 23, 2009Date of Patent: June 12, 2012Assignee: Lexmark International, Inc.Inventors: Keith Bryan Hardin, John Thomas Fessler, Paul Kevin Hall, Robert Aaron Oglesbee
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Publication number: 20120108115Abstract: A Z-directed signal pass-through component for insertion into a printed circuit board while allowing electrical connection from external surface conductors to internal conductive planes or between internal conductive planes. The Z-directed pass-through component is mounted within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body.Type: ApplicationFiled: January 13, 2012Publication date: May 3, 2012Inventors: KEITH BRYAN HARDIN, John Thomas Fessler, Paul Kevin Hall, Brian Lee Nally, Robert Aaron Oglesbee
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Patent number: 8118233Abstract: Disclosed is a printing device for printing Radio Frequency Identification (RFID) labels. The printing device includes an input media drawer configured to receive a plurality of RFID labels including RFID tags and an RFID label processing mechanism operatively coupled to the input media drawer. The RFID label processing mechanism includes a radio system for providing a signal for processing of the at least one RFID tag received from the input media drawer, and an antenna module coupled to the radio system for processing the at least one RFID tag based on the signal received from the radio system. The antenna module includes a transmission line including serially connected, a first set of horizontal legs and a second set of vertical legs. Further, the printing device includes a printing mechanism operatively coupled to the RFID label processing mechanism for printing the RFID labels.Type: GrantFiled: May 29, 2009Date of Patent: February 21, 2012Assignee: Lexmark International, Inc.Inventors: John Thomas Fessler, Swetha Puligalla
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Publication number: 20110017505Abstract: A Z-directed connector component for insertion into a printed circuit board and providing electrical connections to internal conductive planes contained with the PCB and/or to external conductive traces on the surface of the PCB.. In one embodiment the Z-directed component is housed within the thickness of the PCB allowing other components to be mounted over it. The body of the Z-directed connector component may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided.Type: ApplicationFiled: July 23, 2009Publication date: January 27, 2011Inventors: Keith Bryan Hardin, Richard Herman Dressman, John Thomas Fessler, Paul Kevin Hall, Brian Lee Naily
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Publication number: 20110019374Abstract: A Z-directed signal delay line component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed delay line component is housed within the thickness of the PCB allowing other components to be mounted over it. The delay line embodiments include a W-like line and a plurality of spaced apart, semi-circular line segment connected such that current flow direction alternates in direction between adjacent semi-circular line segments, each of which in other embodiments can be varied by use of shorting bars. Several Z-directed delay line components may be mounted into a PCB and serially connected to provide for longer delays. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided.Type: ApplicationFiled: July 23, 2009Publication date: January 27, 2011Inventors: Keith Bryan Hardin, John Thomas Fessler, Paul Kevin Hall, Brian Lee Nally, Robert Aaron Oglesbee
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Publication number: 20110017502Abstract: A design for a Z-directed component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed component is mounted within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Z-directed components include high frequency signal pass throughs, capacitors, diodes, transistors, transmission lines, delay lines. Methods for mounting Z-directed components are also provided.Type: ApplicationFiled: July 23, 2009Publication date: January 27, 2011Inventors: Keith Bryan Hardin, John Thomas Fessler, Paul Kevin Hall, Brian Lee Nally, Robert Aaron Oglesbee
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Publication number: 20110017503Abstract: A Z-directed capacitor component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained within the PCB. In one embodiment the Z-directed capacitor component utilizes semi-cylindrical metallic sheets. In another embodiment, stack annular metallic disks are used. The Z-directed capacitor component mounts within the thickness of the PCB allowing other components to be mounted over it. The body may contain one or more conductors and may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided.Type: ApplicationFiled: July 23, 2009Publication date: January 27, 2011Inventors: Keith Bryan Hardin, John Thomas Fessler, Paul Kevin Hall, Brian Lee Nally, Robert Aaron Oglesbee
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Publication number: 20110017504Abstract: A Z-directed ferrite bead component for insertion into a printed circuit board while allowing electrical connection to internal conductive planes contained with the PCB. In one embodiment the Z-directed component is housed within the thickness of the PCB allowing other components to be mounted over it. Signal and dual conductor Z-directed ferrite bead component embodiments are provided. The body may include one or more surface channels or wells extending along at least a portion of the length of the body. Methods for mounting Z-directed components are also provided.Type: ApplicationFiled: July 23, 2009Publication date: January 27, 2011Inventors: Keith Bryan Hardin, John Thomas Fessler, Paul Kevin Hall, Brian Lee Nally, Robert Aaron Oglesbee
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Publication number: 20100303531Abstract: Disclosed is a printing device for printing Radio Frequency Identification (RFID) labels. The printing device includes an input media drawer configured to receive a plurality of RFID labels including RFID tags and an RFID label processing mechanism operatively coupled to the input media drawer. The RFID label processing mechanism includes a radio system for providing a signal for processing of the at least one RFID tag received from the input media drawer, and an antenna module coupled to the radio system for processing the at least one RFID tag based on the signal received from the radio system. The antenna module includes a transmission line including serially connected, a first set of horizontal legs and a second set of vertical legs. Further, the printing device includes a printing mechanism operatively coupled to the RFID label processing mechanism for printing the RFID labels.Type: ApplicationFiled: May 29, 2009Publication date: December 2, 2010Inventors: John Thomas Fessler, Swetha Puligalla
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Patent number: 7223030Abstract: A printing system (250) includes a printing subsystem (255) in the form of a printer assembly (14). The printing subsystem (255) includes a printer housing (257) in which a print engine (259) resides and a memory (261) for storing data indicating the position of labels on media. The contents of memory (261) can be obtained from an end user application (270) which may supply the position data to the printing subsystem (255) in a print data stream. Pre-programmed position data is read from a tag (88) on print media (28) having multiple tags embedded thereon. The pre-programmed position data is compared to position data received in a print request data stream to determine the position of at least one tag on the print media.Type: GrantFiled: February 1, 2005Date of Patent: May 29, 2007Assignee: Lexmark International, Inc.Inventors: John Thomas Fessler, Keith Bryan Hardin, Mark Stephen Underwood
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Patent number: 7016198Abstract: A multi-layer printed circuit board (PCB) routes signal traces on internal signal layer(s) and includes power planes on the two outermost layers. The outer layers are maintained at the same non-ground voltage level, and are electrically connected by a series of vias that circumscribe signal traces on the internal layer(s). With a preferred maximum spacing of one-tenth the wavelength of electromagnetic energy generated by the signal traces, the vias, together with the outer power planes, contain electromagnetic energy within the PCB. One or more of the outer planes may include a second power plane area maintained at a different voltage. The two power plane areas are connected by decoupling capacitors, located proximate underlying signal traces that traverse the two power plane areas.Type: GrantFiled: April 8, 2003Date of Patent: March 21, 2006Assignee: Lexmark International, Inc.Inventors: John Thomas Fessler, Keith Bryan Hardin, Eric Wayne Westerfield
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Publication number: 20040201971Abstract: A multi-layer printed circuit board (PCB) routes signal traces on internal signal layer(s) and includes power planes on the two outermost layers. The outer layers are maintained at the same non-ground voltage level, and are electrically connected by a series of vias that circumscribe signal traces on the internal layer(s). With a preferred maximum spacing of one-tenth the wavelength of electromagnetic energy generated by the signal traces, the vias, together with the outer power planes, contain electromagnetic energy within the PCB. One or more of the outer planes may include a second power plane area maintained at a different voltage. The two power plane areas are connected by decoupling capacitors, located proximate underlying signal traces that traverse the two power plane areas.Type: ApplicationFiled: April 8, 2003Publication date: October 14, 2004Inventors: John Thomas Fessler, Keith Bryan Hardin, Eric Wayne Westerfield
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Patent number: 5872807Abstract: A clock circuit includes an oscillator for generating a reference frequency signal, and a spread spectrum clock generator cooperating with the oscillator for generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at harmonics of the fundamental frequency. The spread spectrum clock generator preferably includes a clock pulse generator for generating a series of clock pulses, and a spread spectrum modulator for frequency modulating the clock pulse generator to broaden and flatten amplitudes of EMI spectral components which would otherwise be produced by the clock pulse generator. The spread spectrum modulator frequency modulates the clock pulses with specific profiles of frequency deviation versus the period of the profile. Electronic devices including the spread spectrum clock circuit and associated method are also disclosed.Type: GrantFiled: February 13, 1997Date of Patent: February 16, 1999Assignee: Lexmark International, Inc.Inventors: James Ronald Booth, Donald Reid Bush, John Thomas Fessler, Keith Bryan Hardin
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Patent number: 5867524Abstract: A clock circuit includes an oscillator for generating a reference frequency signal, and a spread spectrum clock generator cooperating with the oscillator for generating a spread spectrum clock output signal having a fundamental frequency and reduced amplitude EMI spectral components at harmonics of the fundamental frequency. The spread spectrum clock generator preferably includes a clock pulse generator for generating a series of clock pulses, and a spread spectrum modulator for frequency modulating the clock pulse generator to broaden and flatten amplitudes of EMI spectral components which would otherwise be produced by the clock pulse generator. The spread spectrum modulator frequency modulates the clock pulses with specific profiles of frequency deviation versus the period of the profile. Electronic devices including the spread spectrum clock circuit and associated method are also disclosed.Type: GrantFiled: February 13, 1997Date of Patent: February 2, 1999Assignee: Lexmark International Inc.Inventors: James Ronald Booth, Donald Reid Bush, John Thomas Fessler, Keith Bryan Hardin