Design and Test of DVB-H Mobile Digital TV Mobile Phone…

There are three types of mobile TVs, one based on analog TV broadcasting networks, the other based on mobile communication networks, and one based on digital broadcasting networks. The first solution is to add an analog TV module to the mobile phone to receive the analog TV broadcast program, whi ---MORE---

This entry was posted in 201911 on

Energy-saving New Deal Helps Dragon Boat Consumption Ex…

As a traditional national holiday, the annual Dragon Boat Festival holiday is approaching. The three-day holiday also provides the consumers with flexible space for travel and shopping. This year's Dragon Boat Festival coincides with the European Cup. The purchase demand for color TV s ---MORE---

This entry was posted in 201911 on

Air conditioning bracket aging, who will manage

Recently, there have been two consecutive letters from readers reflecting the problem of the aging of air-conditioner wall brackets. Among them, Mr. Yao Guoguang reported that the outer wall brackets of many air conditioners in the city have been rusted by the sun, rain, and rain, causing ---MORE---

This entry was posted in 201911 on

Don't be blinded by the surface to resolve common f…

Due to the arrival of summer, the use of air conditioners has become more frequent, but in the course of use, many friends always feel that the air conditioner in the home has failed and needs to be repaired. Therefore, from time to time, the air conditioner in the home is always a little ---MORE---

This entry was posted in 201911 on

Next-generation Internet IPv6 Accelerated Landing Opera…

The Internet Society held the World IPv6 Launch Day on June 6 to encourage the conversion and upgrade of IPv4 to IPv6. The benefits of IPv6 are enormous. Metaphorically speaking, IPv6 can assign an IP address to every grain of sand on earth. Once IPv6 is fully commercialized, the exhaustio ---MORE---

This entry was posted in 201911 on

Rear-projection installation, use and maintenance tips

According to the application, the projector can be divided into two types: front projection and rear projection. The so-called front projection is that the viewer and the projector are located on the same side of the projection screen; while the rear projection is that the viewer and the projecto ---MORE---

This entry was posted in 201911 on

White light led detailed introduction

In order to obtain a sufficient white LED beam, large-size LED chips have been developed in an attempt to achieve the desired goal in this way. In fact, when the electric power applied to the white LED continues to exceed 1W, the beam will decrease, and the luminous efficiency ---MORE---

This entry was posted in 201911 on