Protruding and concave detecting sensor, finger print contrust device and personal recognising device

Application Number: 00105331
Application Date: 2000.03.31
Publication Number: 1268719
Publication Date: 2000.10.04
Priority Information: 1999/3/31 JP 090436/1999; 1999/12/8 JP 348786/1999
International: A61B5/117;G06K9/00
Applicant(s) Name: Mitsubishi Electric Corp.
Inventor(s) Name: Hashito Takaichi;Urakabe Takako;Suzuki Akihiro
Patent Agency Code: 11038
Patent Agent: yu jing
Abstract An unevenness detecting sensor has a high S/N ratio, wherein, a sensing element array including N row by M column sensing elements 10, each sensing element having a sensing electrode 1 and a converter 2 for converting the change of a capacitor formed between the sensing electrode and an object in close vicinity to the sensing electrode into a voltage or a current. Each of the sensing elements is connected to one of scanning lines 100 disposed along columns of the sensing element array, and to one of output lines 200 disposed along rows of the sensing element array.