Today, wireless mice are widely demanded and popular gadgets that can be used with both a computer and a laptop. However, some people do not understand how it works - after all, a wireless mouse does not require any wires.
Wireless mouse operation
Most wireless mice communicate with a computer using radio frequency communications, which require components such as a receiver and transmitter to establish. Using the built-in transmitter, the mouse transmits electromagnetic radio signals that communicate information about pressed buttons and mouse movements. The receiver connects to the computer, receives the mouse signals and transmits them to the operating system with the wireless mouse driver.
The receiver can be either built-in or a separate device connected to a computer in the form of a special card inserted into an expansion slot.
The same principle is used by many electronic devices - cell phones, wireless networks, garage door drives, remote controls, and so on. However, unlike infrared communication, which powers these devices, radio frequency communication does not require the mouse and receiver to be located within an accessible distance of each other. The transmitter signal of the gadget easily passes through obstacles in the form of a computer monitor or table top.
Synchronizing a wireless mouse
As in most modern computer mice, wireless models use in their work not a ball, but an optical system, which significantly increases the accuracy of the gadget. In addition, the optical system allows the user to use a wireless mouse on almost all surfaces, which is very important for a device that is not connected to a computer by a cable at least for some time.
Another advantage of radio frequency communication is the minimum energy consumption of radio transmitters and receivers, which are also lightweight, inexpensive and can operate on batteries.
Synchronization of a wireless mouse is necessary for the interaction of its transmitter with the receiver, which must operate on the same channel, which is a combination of an identification code and frequency. Synchronization prevents interference from other wireless devices and foreign sources.
Each manufacturer equips its own wireless mouse - some models (more expensive in the overall rating) are sold already synchronized, and some need to be automatically synchronized by pressing certain buttons on the device. Data transmitted by the mouse to the receiver is protected by encryption mechanisms or frequency hopping technology.
