Signal transmitting method, stylus, signal receiving method and touch screen

A signal receiving method, applied to a touch screen, and comprising:

• continuously detecting n coded amplitude modulation signals which are continuously transmitted by a stylus, by utilizing n+1 detection time slices;
• wherein in the n coded amplitude modulation signals, the coded amplitude modulation signals, sequence numbers of which are odd, have a preset first frequency, the coded amplitude modulation signals, sequence numbers of which are even, have a preset second frequency, signals that are detected within an ith detection time slice and a (i+1)th detection time slice, comprise a complete ith coded amplitude modulation signal, and i=1, 2, 3 . . . n;
• calculating signal strength of the n coded amplitude modulation signals according to the signals that are detected within the n+1 detection time slices;
• and
• binarizing the signal strength of the n coded amplitude modulation signals respectively, so as to obtain n binary codes that represent information to be transmitted.

A touch screen, comprising:

• at least one processor;
• and
• a storage in communication connection with the at least one processor,
• wherein the storage stores instructions which can be executed by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor implements a signal receiving method, being applied to a touch screen and comprising:
• continuously detecting n coded amplitude modulation signals which are continuously transmitted by a stylus, by utilizing n+1 detection time slices;
• wherein in the n coded amplitude modulation signals, the coded amplitude modulation signals, sequence numbers of which are odd, have a preset first frequency, the coded amplitude modulation signals, sequence numbers of which are even, have a preset second frequency, signals that are detected within an ith detection time slice and a (i+1)th detection time slice, comprise a complete ith coded amplitude modulation signal, and i=1, 2, 3 . . . n;
• calculating signal strength of the n coded amplitude modulation signals according to the signals that are detected within the n+1 detection time slices;
• and
• binarizing the signal strength of the n coded amplitude modulation signals respectively, so as to obtain n binary codes that represent information to be transmitted.