Photography – Attitude sensing
Patent
1997-11-18
1999-03-23
Adams, Russell
Photography
Attitude sensing
396 51, G03B 1700
Patent
active
058872000
ABSTRACT:
A line of sight detection device for detecting a line of sight of a user by using personal data of the user includes a personal data obtaining device for obtaining personal data related to the line of sight of the user, an attitude detection device for detecting an attitude of the device, a memory for storing the attitude of the device detected by the attitude detection device, the memory storing the attitude of the line of sight detection device at a time when the personal data obtaining device starts an obtaining operation of the personal data, and a determination device for comparing the attitude of the line of sight detection device stored in the memory with the attitude of the device during the obtaining operation for the personal data by the personal data obtaining device, and for outputting information indicative of a failure of the obtaining operation of the personal data when the compared attitudes of the device are different from each other.
REFERENCES:
patent: 5428413 (1995-06-01), Shindo
patent: 5485241 (1996-01-01), Irie et al.
patent: 5486892 (1996-01-01), Suzuki et al.
patent: 5570158 (1996-10-01), Wakabayashi et al.
patent: 5579079 (1996-11-01), Yamada et al.
patent: 5598243 (1997-01-01), Takagi
Adams Russell
Canon Kabushiki Kaisha
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