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186 results about "Real mode" patented technology

Real mode, also called real address mode, is an operating mode of all x86-compatible CPUs. Real mode is characterized by a 20-bit segmented memory address space (giving exactly 1 MiB of addressable memory) and unlimited direct software access to all addressable memory, I/O addresses and peripheral hardware. Real mode provides no support for memory protection, multitasking, or code privilege levels.

Quick starting optimizing method based on X86 platform Vxworks operation system

The invention discloses a quick starting optimizing method based on an X86 platform Vxworks operation system. The method comprises the following steps of (1) BIOS execution and (2) Vxworks loading and starting. According to the step of BIOS execution, after a computer is powered on and started, POST, initialization setting, execution of resident programs are carried out in sequence, a bootstrap program is started by calling an INT19 file in the system, a Vxworks file in the system is read directly and is analyzed after the bootstrap program is started, then an computer operation mode is switched to a protection mode from a real mode, and data and codes after analysis of the file are uploaded to assigned memory addresses respectively. According to the steps of Vxworks loading and starting, after uploading of the data and uploading of the codes are finished, the data and the codes skip to the position of a memory address e_entry corresponding to an ELF format file header to begin to be executed, the operation system is uploaded and started directly, and application programs are executed. According to the quick starting optimizing method based on the X86 platform Vxworks operation system, the method of uploading the system through bootrom in the prior art is changed, and the starting time is shortened to 3 seconds from original 20 seconds to 30 seconds.
Owner:XIAN RITRONTEK ELECTRONICS TECH

Terminal reminding method and system based on Bluetooth peripherals

The invention relates to a terminal reminding method and system based on Bluetooth peripherals. The method comprises the steps that a terminal receives user physical sign information in real time, wherein the user physical sign information is sent by the Bluetooth peripherals; the received user physical sign information is compared with a preset conscious physical sign threshold value, and whether the user is in the sleeping state or not is judged; if the user is in the sleeping state, a no-disturbing mode is started; in the no-disturbing mode, whether the frequency of messages from the same external number exceeds a preset message frequency threshold value or not is judged, and if not, the no-disturbing mode is kept; if yes, the no-disturbing mode is closed and the normal mode is started for reminding the user. According to the terminal reminding method and system, when the user is in the sleeping state, the no-disturbing mode is automatically started to shield message reminds; in the no-disturbing mode, when the frequency of messages from the same number exceeds the preset threshold value, the no-disturbing mode is automatically closed and the normal mode is started for reminding the user. According to the terminal reminding method, the user will not be disturbed when having a rest, and will not miss an emergent call.
Owner:SHANGHAI DROI TECH CO LTD
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