MULTI-MODE ACTIVE CIRCUIT CONTROL AND ACTIVATION SYSTEM

• US 20160204965A1
• Filed: 03/18/2016
• Published: 07/14/2016
• Est. Priority Date: 11/11/2012
• Status: Active Grant

• Current Assignee: Kyocera AVX Components Corporation (Kyocera Corporation)
• Original Assignee: Ethertronics, Inc. (Kyocera Corporation)
• Inventors: Desclos, Laurent, Rowson, Sebastian
• Granted Patent: US 9,768,991 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04L 25/4902 Pulse width modulation; Pulse position modulation

Abstract

An active circuit control system that utilizes multiple PWM signals to activate and power an array of active components, requiring minimal wiring between the multi-mode signal conditioner and active components. Signal conditioning and filtering is implemented to allow transmission of power and control signals for multiple components over a single or multiple transmission lines. The circuit can be used to provide supply voltage and control signals for active antennas, switch networks, and other components in communication systems and electronic devices.

Claims

1. An active circuit control system comprising:

a tuning decoder circuit, the tuning decoder circuit comprising;

an input port for a PWM signal;

a first circuit path for containing a rectifier and one or more filters for generating DC supply voltage for one or more active components within a tunable antenna;

a second circuit path containing a low pass circuit to generate a control signal that is controlled by the PWM signal;

a control logic circuit to apply the DC supply voltage from said first circuit path and the control signal from said second circuit path to one or more active components for control.

2. The active circuit control system of claim 9, wherein said one or more filters includes a band pass filter.

3. The active circuit control system of claim 9, wherein said one or more filters includes a low pass filter.

4. The active circuit control system of claim 9, wherein at least one of said filters is positioned between device control stages for reducing interference between devices and reducing overall noise thereby improving transceiver processing.

5. The active circuit control system of claim 8, wherein said PWM signal is adapted to be expanded to full amplitude in an initial stage prior to decoding.

6. The active circuit control system of claim 13, wherein said tuning decoder includes a detection circuit adapted to detect a PWM signal and a hold circuit adapted to maintain a state upon the end of the PWM signal.

7. The active circuit control system circuit of claim 14, wherein said detection and decoding circuits are adapted to decode a series of digital bits representing said control signal.