Bradley R Kramer

US Patent:

20190207786, Jul 4, 2019

Filed:

Dec 30, 2017

Appl. No.:

15/859419

Inventors:

- Dallas TX, US
Bradley Allen Kramer - Plano TX, US
Baher Haroun - Allen TX, US
Tobias Bernhard Fritz - Mainburg, DE
Ernst Georg Muellner - Muenchen, DE
Ralf Peter Brederlow - Poing, DE

International Classification:

H04L 25/02
H05K 1/02
H03K 17/693
G01R 31/317
H04B 1/525
H04B 3/54

Abstract:

Described examples include an integrated circuit including a receive portion to receive an encoded transmission on a line. The receive portion has: a wake mode in which the receiver is capable of receiving the encoded transmission; and a sleep mode in which the receiver is not capable of receiving the encoded transmission. A wakeup controller monitors the line for a wakeup signal and provides a signal to the receive portion to cause the receive portion to enter the wake mode when the wakeup controller receives the wakeup signal.

US Patent:

20190007103, Jan 3, 2019

Filed:

Jun 29, 2017

Appl. No.:

15/638163

Inventors:

- Dallas TX, US
Benjamin Stassen Cook - Addison TX, US
Swaminathan Sankaran - Allen TX, US
Bradley Allen Kramer - Plano TX, US
Mark W. Morgan - Allen TX, US
Baher S. Haroun - Allen TX, US

International Classification:

H04B 5/00
H01Q 5/321
H04B 5/02
H01Q 5/40

Abstract:

A system is provided in which a set of modules each have a substrate on which is mounted a radio frequency (RF) transmitter and/or an RF receiver coupled to a near field communication (NFC) coupler located on the substrate. Each module has a housing that surrounds and encloses the substrate. The housing has a port region on a surface of the housing. Each module has a field confiner located between the NFC coupler and the port region on the housing configured to guide electromagnetic energy emanated from the NFC coupler through the port region to a port region of an adjacent module. An artificial magnetic conductor surface is positioned adjacent the backside of each NFC coupler to reflect back side electromagnetic energy with a phase shift of approximately zero degrees.

US Patent:

20190007786, Jan 3, 2019

Filed:

Jun 29, 2017

Appl. No.:

15/638194

Inventors:

- Dallas TX, US
Benjamin Stassen Cook - Addison TX, US
Nathan Brooks - Champaign IL, US
Bradley Allen Kramer - Plano TX, US
Mark W. Morgan - Allen TX, US
Baher Haroun - Allen TX, US

International Classification:

H04W 4/00
H04B 5/00
H04L 29/06
H04L 29/08
G06F 13/14

Abstract:

A system is provided in which a set of modules each have a substrate on which is mounted a radio frequency (RF) transmitter and/or an RF receiver coupled to a near field communication (NFC) coupler located on the substrate. Each module has a housing that surrounds and encloses the substrate. The housing has a port region on a surface of the housing. Each module has a field confiner located between the NFC coupler and the port region on the housing configured to guide electromagnetic energy emanated from the NFC coupler through the port region to a port region of an adjacent module. The port region is offset laterally from the NFC coupler. The field confiner is skewed to provide a pathway between the NFC coupler and the port region.

US Patent:

20180278229, Sep 27, 2018

Filed:

Mar 23, 2017

Appl. No.:

15/466961

Inventors:

- Dallas TX, US
Bradley Allen Kramer - Plano TX, US
Baher Haroun - Allen TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H01P 5/02
H03H 7/01

Abstract:

Disclosed examples include digital isolator modules, isolation circuitry and low-loss multi-order bandpass filter circuits, including a capacitive coupled galvanic isolation circuit with first and second coupling capacitors individually including a first plate and a second plate, and a bond wire connecting the first plates of the coupling capacitors, a first circuit with a first inductor coupled to form a first resonant tank circuit with a first parasitic capacitor associated with the second plate of the first coupling capacitor, and a second circuit with a second inductor coupled to form a second resonant tank circuit with a second parasitic capacitor associated with the second plate of the second coupling capacitor.

US Patent:

20180175835, Jun 21, 2018

Filed:

Dec 19, 2016

Appl. No.:

15/384305

Inventors:

- Dallas TX, US
Bradley Allen Kramer - Plano TX, US
Baher S. Haroun - Allen TX, US

International Classification:

H03K 3/356

Abstract:

A regenerative differential receiver includes, for example, a transformer arranged to receive a modulated differential signal. A first detector is arranged to source a first output current for indicating a first power level in response to falling voltage of a first line of the modulated differential signal. A second detector is arranged to sink a second output current for indicating a second power level in response to rising voltage of a first line of the modulated differential signal. A cross-coupled latch is arranged to latch a state in response to the first and second power levels. The cross-coupled latch provides, for example, weak non-linear regeneration for increasing receiver gain and maximum operating frequencies.

US Patent:

20170194909, Jul 6, 2017

Filed:

Oct 10, 2016

Appl. No.:

15/289349

Inventors:

- Dallas TX, US
Bradley A. Kramer - Plano TX, US
Swaminathan Sankaran - Allen TX, US

International Classification:

H03B 27/00
H03B 5/12

Abstract:

A quadrature voltage controlled oscillator (QVCO). The QVCO includes a first node for providing a first quadrature signal, a second node for providing a second quadrature signal, a third node for providing a third quadrature signal, and a fourth node for providing a fourth quadrature signal. The QVCO further includes a first coil connected between the first node and the second node and a second coil connected between the third node and the fourth node. The first coil and second coil are positively magnetically coupled.

US Patent:

20170126177, May 4, 2017

Filed:

Oct 30, 2015

Appl. No.:

14/928268

Inventors:

- Dallas TX, US
Bradley A. Kramer - Plano TX, US
Swaminathan Sankaran - Allen TX, US

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

H03B 5/12

Abstract:

A voltage controlled oscillator (VCO) for providing an oscillating output signal. The VCO includes a first inductor, and the oscillating output signal is responsive to a changing current through the first inductor. The VCO also includes a second inductor, proximate the first inductor, coupled to a first cross-coupling stage and a third inductor, proximate the first inductor, coupled to a second cross-coupling stage.

US Patent:

20170093010, Mar 30, 2017

Filed:

Oct 5, 2016

Appl. No.:

15/285723

Inventors:

- Dallas TX, US
Bradley Allen Kramer - Plano TX, US

International Classification:

H01P 3/16
H01Q 15/14
H01Q 1/24
H04B 1/04

Abstract:

A system is provided for transmitting sub-terahertz electro-magnetic radio frequency (RF) signals using a dielectric waveguide (DWG) having a dielectric core member surrounded by dielectric cladding. An RF transmitter is coupled to an antenna located on a first substrate, in which the antenna is adjacent an edge of the substrate. The first substrate is mounted on a second substrate. A conductive reflector plate is formed on the top surface of the second substrate. An end of the DWG is mounted on the second substrate over the reflector plate such that an exposed face of the core member at the end of the DWG is adjacent the antenna. The core member at the end of DWG forms an angle of inclination with the second substrate in which the angle is in a range of approximately 10-30 degrees.