Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-07-03
2007-07-03
Vu, Kim (Department: 2135)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C380S210000, C380S246000, C348S207990, C348S441000
Reexamination Certificate
active
10424287
ABSTRACT:
A digital video camera includes an image sensor capable of producing a frame of video data representing an image viewed by the sensor, an image memory for storing video data such as previously recorded frame data in a video frame location of the image memory, a read circuit for fetching the previously recorded frame data, an encryption circuit having an encryption key input connected to receive the previously recorded frame data from the read circuit as an encryption key, an un-encrypted data input connected to receive the frame of video data from the image sensor and an encrypted data output port, and a write circuit for writing a frame of encrypted video data received from the encrypted data output port of the encryption circuit to the memory and overwriting the video frame location storing the previously recorded frame data.
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Oxford on-line dictionary, http://dictionary.oed.com/entrance.dtl, Oxford University Press 2007, on the definition of the word “overwrite” under 1/c computing.
Homer Mark
Shan April
The United States of America as represented by the Administrator
Vu Kim
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