| 摘要 |
An ergonomic pointing device receives user commands for controlling an electronic device. Typically a switching assembly is provided underneath a navigation wheel. The switching assembly comprises switches for generating and/or modulating signals in response to the received commands. Locating the switches in the switching assembly allows, for example, increased manufacturing tolerances. Additionally, the switching assembly can be secured to a device base such as a printed circuit board of the electronic device using, for example, a solder reflow process. Attaching the wheel assembly to the base permits, for example, the use of materials (such as rubber) and colors for the wheel that would otherwise be incompatible with a high temperature process.
|
