Invention Grant
US08477049B2 Efficiently embedding information onto a keyboard membrane 有权
有效地将信息嵌入到键盘膜上

Efficiently embedding information onto a keyboard membrane
Abstract:
Methods and systems for efficiently embedding information in a keyboard membrane. Information can be embedded in the keyboard membrane by integrating an information embedding circuit with a switch matrix used to identify location of a key press event. The information is embedded by either hardwiring a column to a selected row, or a row to a selected column. In order to access the embedded information, the row (column) is asserted resulting in the hardwired column (row) to also be asserted. The identification of the asserted column (row) is used to point to the embedded information.
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