公开(公告)号：US20150042412A1

公开(公告)日：2015-02-12

申请号：US13961861

申请日：2013-08-07

Applicant: QUALCOMM Incorporated

Inventor： James Francis Imbornone ,  Yanjie Sun ,  Zhenying Luo ,  Zhenqi Chen ,  Calogero D. Presti ,  Xinwei Wang ,  Dong Zhang

IPC: H03H7/48 ,  H01P5/18

CPC classification number: H03H7/463 ,  H01P5/18 ,  H03H7/48

Abstract: Techniques for efficiently integrating directional coupler circuitry with other circuit elements of an RF front end. In an aspect, one or more inductors of an RF front end filter is incorporated into a first inductor of the directional coupler, and a capacitor is further coupled in parallel with the first inductor. In another aspect, circuitry associated with matching components of the RF front end may further be incorporated into the directional coupler design. Further techniques are provided for coupling directivity tuning elements to a second inductor of the directional coupler to improve the linearity of the coupler over other tuning techniques.

Abstract translation: 用于将定向耦合器电路与RF前端的其它电路元件有效集成的技术。 一方面，RF前端滤波器的一个或多个电感器被并入定向耦合器的第一电感器中，并且电容器进一步与第一电感器并联耦合。 在另一方面，与RF前端的匹配部件相关联的电路还可以并入定向耦合器设计中。 提供了用于将方向性调谐元件耦合到定向耦合器的第二电感器的其它技术，以提高耦合器相对于其它调谐技术的线性度。

公开(公告)号：US20170116141A1

公开(公告)日：2017-04-27

申请号：US15298071

申请日：2016-10-19

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee Mishra ,  Richard Wietfeldt ,  Helena Deirdre O'Shea ,  Zhenqi Chen ,  Wolfgang Roethig

IPC: G06F13/28 ,  G06F13/10

CPC classification number: G06F13/28 ,  G06F13/102 ,  G06F13/16

Abstract: Methods and apparatuses are described that facilitate the communication of data between a transmitter and a receiver across a serial bus interface. In one configuration, a transmitter generates a datagram based on a 16-bit address and a mask-and-data pair burst length, the 16-bit address including a most significant byte (MSB) and a least significant byte (LSB), compares the MSB to a receiver base address maintained in a shadow register, compares the mask-and-data pair burst length to a receiver masked-write burst length maintained in the shadow register, and sends the datagram to the receiver via the bus interface when: the MSB is equal to the receiver base address maintained in the shadow register, and the mask-and-data pair burst length is equal to the receiver masked-write burst length maintained in the shadow register.

公开(公告)号：US20170118125A1

公开(公告)日：2017-04-27

申请号：US15298015

申请日：2016-10-19

Applicant: QUALCOMM Incorporated

Inventor： Lalan Jee Mishra ,  Richard Wietfeldt ,  Helena Deirdre O'Shea ,  Zhenqi Chen ,  Wolfgang Roethig

IPC: H04L12/801 ,  H04L29/06 ,  H04L12/741

Abstract: Methods and apparatuses are described that facilitate the communication of data between a transmitter and a receiver across a serial bus interface. In one configuration, a transmitter generates a datagram based on a register address, detects whether the register address is within a high data rate (HDR) access address range, and sends a payload of the datagram to the receiver according to a HDR mode when the register address is within the HDR access address range. In another configuration, the transmitter generates a datagram including at least a command field and a data field, sends the command field to the receiver according to a single data rate (SDR) mode, wherein the command field indicates a transition to a high data rate (HDR) mode for sending the data field, and sends the data field to the receiver according to the HDR mode.