TWI455526B - Modem and power saving method - Google Patents

Description

Modulation demodulator and power saving method

The invention relates to a power saving device and a method, in particular to a modulation demodulator and a power saving method.

Currently, many electronic devices (eg, mobile phones, computers, personal digital assistants, etc.) can utilize the Internet for data transmission and processing of received data. However, there are many malicious packets on the network, which are bound to occupy the resources of the electronic device, resulting in power consumption.

In view of the above, it is necessary to provide a modulation demodulator and a power saving method, which can save power waste caused by receiving and processing malicious packets connected to the electronic device connected to the modem.

A modulation and demodulator is connected to an electronic device, and the modulation demodulator comprises: a storage device for storing a blacklist and a whitelist, the blacklist and the whitelist respectively including one or more An internet protocol address and an nickname; a setting module for presetting a time period to control the electronic device to enter a sleep state; a timer for starting timing after the modulation demodulator is started; a packet filter, When the modem receives the packet, it is determined whether the Internet Protocol address or the nickname of the packet is sent in the blacklist or the whitelist, and if it exists in the blacklist, the received packet is discarded, if any In the white list, the timer is cleared and the timing is restarted and the packet is sent to the electronic device; and the determining module is configured to determine whether the preset time period has arrived, and if the preset time period arrives, the The electronic device enters a sleep state.

A power saving method is applied to a modem, the modem is connected to an electronic device, and the method includes: storing a blacklist and a whitelist, the blacklist and the whitelist respectively including one or more internet protocol bits Address and nickname; preset a time period to control the electronic device to enter a sleep state; start the modulation demodulator; start timing; receive a packet; determine whether the internet protocol address or nickname of the packet is present in the blacklist Or whitelist; if it exists in the blacklist, discard the received packet; if it exists in the whitelist, send the packet to the electronic device, clear the timer and return to the step of starting timing; Determining whether the preset time period has arrived, and if the preset time period arrives, the electronic device enters a sleep state.

Compared with the prior art, the modulation demodulator and the power saving method can save power consumption caused by receiving and processing malicious packets connected to the electronic device connected to the modem, thereby prolonging the use of the electronic device. time.

As shown in FIG. 1, it is an operating environment diagram of a preferred embodiment of the modulation demodulator of the present invention. The electronic device 2 is connected to other electronic devices by the modem (modem) 1 and the network 3, for example, the network device 4, the mobile phone 5, the computer 6, and the like. The electronic device 2 can be a mobile phone, a computer, a personal digital assistant, or the like. It is an object of the present invention to cause power consumption of the electronic device 2 by reducing the reception of malicious packets.

The modulating demodulator 1 can be built in the electronic device 2 or externally connected to the electronic device 2. For example, when the electronic device 2 is a mobile phone, the modem 1 can be built in the mobile phone, and when the electronic device 2 is a computer, the modem 1 can be externally connected to the computer.

The electronic device 2 may include an Internet Protocol (IP) system 20, a processor 22, and other components and application software not shown in FIG. 1, such as a memory, an operating system, and the like.

The network 3 can be an Internet or other types of communication networks.

2 is a functional block diagram of a preferred embodiment of the modem of the present invention. In the preferred embodiment, the modem 1 includes a processor 10 and a storage device 12. The processor 10 is configured to execute various types of software installed or embedded in the modulation demodulator 1. The storage device 12 is configured to store various types of materials, for example, a blacklist 120, a white list 122, and the like for recording IP addresses, nicknames, various types of agreements, and the like.

In the preferred embodiment, the modem 1 further includes a setting module 14, a timer 15, a packet filter 16, and a determining module 17.

The setting module 14 is configured to preset a time period to control the electronic device 2 to enter a sleep state.

The data in the blacklist 120 and the whitelist 122 can be set, modified, added, deleted, etc. by using the setting module 14, or can be set and modified by the IP system 20 in the electronic device 2. , add, delete, etc.

The timer 15 is configured to start timing after the modulation demodulator 1 is started.

The packet filter 16 is configured to determine, when the modulation demodulator 1 receives the packet, whether an IP address or a nickname for transmitting the packet exists in the blacklist 120 or the whitelist 122. If the IP address or nickname of the packet is sent in the blacklist 120, the packet filter 16 discards the received packet; if the IP address or nickname of the packet is sent in the whitelist 122, then The packet filter 16 causes the timer 15 to be cleared and restarts timing, and the received packet is sent to the electronic device 2.

The determining module 17 is configured to determine whether the preset time period has arrived. If the preset time period arrives, the electronic device 2 enters a sleep state to save power.

In addition, the packet filter 16 is further configured to clear the timer 15 and restart timing when the electronic device 2 transmits a packet through the network 3.

In other embodiments, the modem 1 further includes an identification module 18. If the IP address or nickname of the packet is not present in the blacklist 120 and the whitelist 122, the identification module 18 identifies whether the received packet is a malicious packet according to a preset identification criterion.

If it is a malicious packet, the packet filter 16 discards the packet, and the setting module 14 stores the IP address or nickname of the malicious packet in the blacklist 120; if the packet is not malicious, the packet The filter 16 clears the timer 15 and restarts the timing, and transmits the packet to the electronic device 2.

The identification standard can be customized according to the user's request. For example, if a packet is continuously sent to request to establish a connection within a short time, but no other data packet is transmitted after the connection is established, it may be regarded as malicious. The sending module may add the nickname of the 至 to the blacklist 120.

The present invention is mainly directed to discarding the malicious packet when the modulation demodulator 1 receives a malicious packet, that is, not transmitting the malicious packet to the electronic device 2 for processing. For example, if the modem 1 is in a dormant state, the modem 1 receives a malicious packet and directly discards the malicious packet, the electronic device 2 still maintains a sleep state, thereby achieving power saving. .

The entry of the electronic device 2 into a sleep state as mentioned in various embodiments of the present invention does not conflict with other standby and sleep settings in the electronic device 2. For example, in the embodiments of the present invention, if the electronic device 2 enters a sleep state, and then the user performs related operations (for example, inputting information) on the electronic device 2, the electronic device 2 can be made to sleep. The status changes to the working status.

As shown in FIGS. 3-1 and 3-2, it is a flowchart of the first embodiment of the power saving method of the present invention. The flowchart of this first embodiment is directed to a flow for realizing power saving according to the modulation of the packet by the modulation demodulator 1.

In step S2, the storage device 12 in the modem 1 pre-stores configuration files such as a blacklist 120 and a white list 122 for recording IP addresses, nicknames, various types of agreements, and the like.

In step S4, the setting module 14 presets a time period to control the electronic device 2 to enter a sleep state.

In step S6, the timer 15 starts counting after the modulation demodulator 1 is started.

In step S8, the packet filter 16 determines whether the modem 1 receives any packet through the network 3.

If the modulation demodulator 1 has not received any packets, the flow proceeds to step S22.

If the modem 1 receives the packet by the network 3, in step S10, the packet filter 16 determines whether the IP address or nickname of the packet is present in the whitelist 122.

If the IP address or nickname of the packet is sent in the whitelist 122, in step S12, the packet filter 16 sends the received packet to the electronic device 2, and the timer 15 is cleared. Zero, then the flow returns to step S6 to cause the timer 15 to restart timing.

If the IP address or nickname of the packet is not present in the whitelist 122, the packet filter 16 determines whether the IP address or nickname of the packet is present in the blacklist 120 in step S14.

If the IP address or nickname of the packet is sent in the blacklist 120, the packet filter 16 discards the received packet in step S16, and the flow proceeds to step S22.

If the IP address or nickname of the packet is not present in the blacklist 120, in step S18, the identification module 18 identifies whether the received packet is a malicious packet according to a preset identification criterion.

If the received packet is not maliciously packetized, the flow returns to step S12.

If the received packet is a malicious packet, the packet filter 16 discards the packet in step S20, and the setting module 14 stores the IP address or nickname of the malicious packet in the blacklist 120. .

In step S22, the determining module 17 determines whether the preset time period has arrived. If the preset time period arrives, in step S24, the determining module 17 causes the electronic device 2 to enter a sleep state to save power. If the preset time period has not arrived, the flow returns to step S8.

As shown in FIG. 4, it is a flowchart of the second embodiment of the power saving method of the present invention. The flowchart of this second embodiment is directed to a flow for realizing power saving by transmitting a packet according to the modulation demodulator 1.

In step S30, the timer 15 starts counting after the modulation demodulator 1 is started.

In step S32, the packet filter 16 determines whether the modem 1 sends any packet through the network 3.

If the modem 1 transmits a packet by the network, the packet filter 16 causes the timer 15 to be cleared in step S34, and then the flow returns to step S30 to cause the timer 15 to restart. Timing.

In step S36, the determining module 17 determines whether the preset time period has arrived. If the preset time period arrives, in step S38, the determining module 17 causes the electronic device 2 to enter a sleep state to save power. If the preset time period has not arrived, the flow returns to step S32.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

1‧‧‧Modulation demodulator

10‧‧‧ processor

12‧‧‧Storage device

120‧‧‧Blacklist

122‧‧‧White List

14‧‧‧Setup module

15‧‧‧Timer

16‧‧‧Packet filter

17‧‧‧Judgement module

18‧‧‧ Identification module

2‧‧‧Electronic devices

20‧‧‧Internet Protocol System

22‧‧‧ Processor

3‧‧‧Network

4‧‧‧Network devices

5‧‧‧Mobile phones

6‧‧‧ computer

1 is a diagram showing the operating environment of a preferred embodiment of a modem of the present invention.

2 is a functional block diagram of a preferred embodiment of the modem of the present invention.

3-1 and 3-2 are flow charts of a first embodiment of the power saving method of the present invention.

4 is a flow chart of a second embodiment of the power saving method of the present invention.

1‧‧‧Modulation demodulator

10‧‧‧ processor

12‧‧‧Storage device

120‧‧‧Blacklist

122‧‧‧White List

14‧‧‧Setup module

15‧‧‧Timer

16‧‧‧Packet filter

17‧‧‧Judgement module

18‧‧‧ Identification module

Claims (10)

A modulation demodulator is connected to an electronic device, and the modulation demodulator comprises:
a storage device, configured to store a blacklist and a whitelist, the blacklist and the whitelist respectively including one or more internet protocol addresses and nicknames;
a setting module, configured to preset a time period to control the electronic device to enter a sleep state;
a timer for starting timing after the modem is activated;
a packet filter, configured to determine, when the packet is received by the modem, whether an internet protocol address or a nickname for sending the packet exists in a blacklist or a whitelist, and if the blacklist is present, discard the received The packet, if present in the white list, clears the timer and restarts the timing and sends the packet to the electronic device; and the determining module is configured to determine whether the preset time period is reached, if the preset time period Upon arrival, the electronic device enters a sleep state. The modulation demodulator according to claim 1, wherein the modulation demodulator further comprises an identification module, if the internet protocol address or nickname for transmitting the packet does not exist in the blacklist and white In the list, it is identified whether the received packet is a malicious packet, and if it is a malicious packet, the packet filter discards the packet and the setting module stores the Internet Protocol address or nickname of the malicious packet in the blacklist. If not a malicious packet, the packet filter clears the timer and restarts timing and sends the packet to the electronic device. The modulation filter according to claim 1, wherein the packet filter is further configured to clear the timer and restart timing when the electronic device sends the packet. The modulation demodulator according to claim 1, wherein the modulation demodulator is built in the electronic device or externally connected to the electronic device. The modulation demodulator according to claim 1, wherein the data in the blacklist and the whitelist is set by the setting module or set by the electronic device. A power saving method is applied to a modem, the modem is connected to an electronic device, and the method includes:
Storing a blacklist and a whitelist, the blacklist and the whitelist respectively including one or more internet protocol addresses and nicknames;
Presetting a period of time to control the electronic device to enter a sleep state;
Starting the modulation demodulator;
start the timer;
Receiving a packet;
Determining whether the internet protocol address or nickname for sending the packet exists in the blacklist or whitelist;
If it exists in the blacklist, discard the received packet;
If it exists in the white list, send the packet to the electronic device, clear the timer and return to the step of starting timing; and determine whether the preset time period is reached, and if the preset time period arrives, the electronic device is The device goes to sleep. The power saving method of claim 6, wherein the method further comprises:
If the Internet Protocol address or nickname of the packet is not present in the blacklist and whitelist, identify whether the received packet is a malicious packet; and if it is a malicious packet, discard the packet and send the Internet Protocol bit of the malicious packet. The address or nickname is stored in the blacklist; or if it is not a malicious packet, the packet is sent to the electronic device, the timer is cleared and returned to the step of starting timing. The power saving method of claim 6, wherein the method further comprises:
The timer is cleared and the timing is restarted when the electronic device transmits the packet. The power saving method according to claim 6, wherein the modulation demodulator is built in the electronic device or externally connected to the electronic device. The power saving method of claim 6, wherein the method further comprises:
Set the data in the blacklist and whitelist, including the agreement, internet protocol address and nickname.