Consumers expect advanced 2.5G and 3G mobile phones to have the same form factor and battery life as existing 2G phones. 2.5G and 3G "smart" phones will also offer voice, data and multimedia features,...
The annual college entrance examination is coming. In the past, candidates often encounter traffic jams, lateness, forgetting things, etc. As the latest powerful communication means, what role can 5G ...
Original article by Mr. Gaosu | Jiang JieThe current that doesn’t follow the usual path is a “thorn” in PCB design. Sometimes, even though the road to the sun is paved for it, it insists on taking the...
[size=4]I just started learning DSP, and like many other people, I started from routines. [/size] [size=4] It is inevitable to encounter some problems in the learning process. I hope to write these pr...
The article first introduces the functions of the RF part of the GSM mobile phone, starting from the most primitive secondary analog frequency conversion, to the current zero intermediate frequency me...
[color=#333333]There are three photos in the D card, and there are always some small problems when the photos come out[/color] [color=#333333]After asking others, I should reset the screen when switch...