发明名称 Telephone keypad with multidirectional keys
摘要 A telephone keypad for one touch text messaging the QWERTY pattern of keys in a matrix of nine keys. Using the multi position biasing keys only one touch is needed for each character, so in use to input the letter “C” you touch one key one time, decreasing the time spend text messaging from cell phones or desk tops and dialing phone numbers advertised in letters. The keypad also has a shift key to get upper case included in the nine keys, and a 2nd key to double functionality of the keys.
申请公布号 US9141201(B2) 申请公布日期 2015.09.22
申请号 US201414150030 申请日期 2014.01.08
申请人 发明人 Bowen James Harrison
分类号 G06F3/02;H03K17/94;B41J5/00;G06F3/023;H01H13/84;H01H13/702;H04M1/23;B41J5/10;G06F1/16 主分类号 G06F3/02
代理机构 Whitham Curtis Christofferson & Cook, PC 代理人 Whitham Curtis Christofferson & Cook, PC
主权项 1. An optical switch with positional detection, comprising in combination: an optical switch having a switch base; a key cap adjoined to a key stem having a centerline perpendicular to said switch base through the center of said key stem; said key stem is configured to move laterally to said switch base; at least one emitter and at least one detector bi-lateral to said centerline; said at least one emitter to emit an emitted beam directed to said key stem; said at least one detector to detect said directed beam; a surface on said key stem to attenuate said directed beam when lateral applied pressure is applied to said key stem; and wherein the amount of said lateral applied pressure of said key stem produces an output from said optical switch including at least said lateral applied pressure.
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