Christopher Jay Little

US Patent:

20190326940, Oct 24, 2019

Filed:

Apr 12, 2019

Appl. No.:

16/383500

Inventors:

- Woburn MA, US
Christopher Robert LITTLE - Gilroy CA, US

International Classification:

H04B 1/00
H04B 1/56
H04B 1/04

Abstract:

Multiplexing architectures for wireless applications are discussed herein. In some embodiments, a front-end architecture can include a first power amplifier having an output coupled to a transmit filter through a path that is substantially free of a switch. The transmit filter can be configured to support a first transmit band or a second transmit band. The front-end architecture can further include a receive filter configured to support at least a first receive band associated with the first transmit band, and a second power amplifier having an output configured to couple to a first duplexer or a second duplexer through a selector switch. The first duplexer can include a receive portion configured to support a second receive band associated with the second transmit band.

US Patent:

20180131501, May 10, 2018

Filed:

Aug 29, 2017

Appl. No.:

15/690259

Inventors:

- Woburn MA, US
Christopher Robert LITTLE - Gilroy CA, US

International Classification:

H04L 5/14
H04B 1/00
H04B 1/48

Abstract:

Switched-filter duplexing architecture for front-end systems. In some embodiments, a wireless architecture can include a first system having a first signal routing circuit for a first transceiver, and a first antenna node, and be configured to be capable of simultaneous transmit and receive operations for a first band and a receive operation for a second band through the first antenna node. The wireless architecture can further include a second system having a second signal routing circuit for a second transceiver and a second antenna node, and be configured to be capable of a transmit operation for the second band through the second antenna node. The wireless architecture can further include a switchable path implemented to selectively allow the transmit operation for the second band to be performed through the second antenna node of the second system or the first antenna node of the first system.

US Patent:

20170338839, Nov 23, 2017

Filed:

Apr 9, 2017

Appl. No.:

15/482774

Inventors:

- Woburn MA, US
Christopher Robert LITTLE - Gilroy CA, US

International Classification:

H04B 1/00
H04B 1/04
H04B 1/56
H04L 5/14

Abstract:

Multiplexing architectures for wireless applications. In some embodiments, a front-end architecture can include a first power amplifier having an output coupled to a transmit filter through a path that is substantially free of a switch. The transmit filter can be configured for a first transmit band or a second transmit band, with the first and second transmit bands at least partially overlapping with each other. The front-end architecture can further include a receive filter configured for at least a first receive band corresponding to the first transmit band, and a second power amplifier having an output capable of being coupled to a first duplexer or a second duplexer through a selector switch. The first duplexer can include a receive portion configured for a second receive band corresponding to the second transmit band.