公开(公告)号：US10716072B2

公开(公告)日：2020-07-14

申请号：US16479235

申请日：2017-07-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Chao-Chiang Lin ,  Rahul V Lakdawala

IPC: H04W52/28 ,  H04W52/36 ,  H01J37/32

Abstract: Techniques for regulating a radio frequency (RF) output power of an antenna of a computing device are described. In an example a physical signal filter unit (PSFU) to filter a detection signal from a proximity sensor for regulating an RF output power of a device is described. The PSFU includes a first filter circuit to filter the detection signal and generate a first filter output signal and a logical inverter gate to generate an inverted detection signal based on the detection signal. The PSFU also includes a second filter circuit to generate a second filter output signal based on the inverted detection signal. The PSFU also includes a logical AND gate to perform a logical AND operation on the first filter output signal and the second filter output signal to generate a control signal for regulating the RF output power of an antenna of the computing device.

公开(公告)号：US09734339B2

公开(公告)日：2017-08-15

申请号：US14780977

申请日：2013-04-23

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jeffrey Kevin Jeansonne ,  Jon G Lloyd ,  Rahul V Lakdawala ,  Justin C Prindle

IPC: G06F9/44 ,  G06F21/57 ,  G06F21/60

CPC classification number: G06F21/575 ,  G06F21/606 ,  G06F2221/034

Abstract: A controller monitors for an indication from core logic indicating that the core logic is in a state in which the core logic does not access a bus. In response to detecting the indication, the controller retrieves the system boot code from a non-volatile memory over the bus.