Modem and method of adjusting power

• US 9,665,142 B2
• Filed: 09/11/2014
• Issued: 05/30/2017
• Est. Priority Date: 04/01/2014
• Status: Active Grant

• Current Assignee: Ambit Microsystems Limited (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Ambit Microsystems Limited (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: Huang, Hau-Lung, Tang, Yue-De
• Primary Examiner(s): Lee, Thomas
• Assistant Examiner(s): Rahman, Mohammad A
• Application Number:
  US14/483,170
• Publication Number:
  US 20150277523A1
• Time in Patent Office: 992 Days
• CPC Class Codes: G06F 1/206 comprising thermal management
• CPC Class Codes: G06F 1/3206 Monitoring of events, devices or parameters that trigger a change in power modality
• CPC Class Codes: G06F 1/324 by lowering clock frequency
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A modem includes a temperature detecting module, a frequency detecting module, and a power offset calculating module. The temperature detecting module detects a real-time-work temperature of the modem. The frequency detecting module obtains a real-time-work frequency of the modem. The power offset calculating module calculates a power offset by inputting the real-time-work temperature and the real-time-work frequency into a pre-stored calculating model and adjusts a power of the modem according to the calculated power offset. A method of adjusting power of the modem is also provided.

Claims

1. A modem, comprising:

a modulator and demodulator circuit;

a temperature detecting module, detecting a real-time-work temperature of an area where the modulator and demodulator circuit is located;

a frequency detecting module, detecting a real-time-work frequency of the modem;

at least one processor;

a storage system; and

one or more programs stored in the storage system and executed by the at least one processor, the one or more programs comprising;

a power offset calculating module, calculating a power offset by summing the real-time-work temperature and the real-time-work frequency, wherein, the real-time-work temperature and the real-time-work frequency are assigned with different weights; and

adjusting power of the modem according to the calculated power offset; and

the power offset calculating module calculating the power offset is based on a pre-stored calculating model which is defined as following;

formula (1)

2. The modem of claim 1, further comprising a central processing unit with a thermal sensor pin, wherein the temperature detecting module comprises a thermal resistor located in the area, and the thermal resistor is connected to the thermal sensor pin to detect the real-time-work temperature of the modem.

3. The modem of claim 1, wherein the power offset calculating module calculates the power offset by:

calculating s_j according to w_ij, b_j, and

4. A method of adjusting power of a modem comprising a central processing unit, comprising:

detecting a real-time-work temperature of an area of the modem where a modulator and demodulator circuit is located;

obtaining a real-time-work frequency of the modem;

calculating a power offset by using a pre-stored calculating model to sum the real-time-work temperature and the real-time-work frequency, wherein the real-time-work temperature and the real-time-work frequency are assigned with different weights; and

adjusting the power of the modem according to the calculated power offset; and

the pre-stored calculating model is defined as following;

formula (1)

5. The method of claim 4, further comprising:

setting a thermal resistor in the area;

connecting the thermal resistor to a thermal sensor pin of the central processing unit of the modem in series; and

detecting the real-time-work temperature of the modem by the thermal resistor.

6. The method of claim 4, further comprising:

calculating s_j according to w_ij, b_j, and