摘要:
The present invention relates to a recording and erasing system which uses a thermoreversible medium 1, which can be heated to a first temperature so as to make an image visible thereon, and can be heated to a second temperature so as to make the image invisible. Such a thermoreversible recording medium tends to carry residual images thereon reducing its thermoreversibility after repeated recording and erasing processes. To overcome this problem, the recording and erasing system includes an erasing data generator 7 for varying the energy applied to a heating element so that the recording medium can be heated to a predetermined temperature. The recording and erasing system has an element for checking the usability of the recording medium, thereby preventing use of unusable recording media.
摘要:
A halftone printing system comprising reference level generation means for generating a reference gradiation level, decision means for comparing a gradation level input signal with the output signal from the reference level generation means and deciding if the gradation level input signal is greater than or equal to the reference gradation level output signal, count means for counting the number of output dots from the decision means and deliverying heat accumulation information on heat accumulated in a thermal head, and a pulse generator which generates pulses, corresponding to the gradation level input signal in accordance with the heat accumulation information from the count means.The halftone printing system further comprises white line detection means for detecting a white line included in the input signals, white line count means for counting the number of continuous white lines in correspondence with the detected results of the white line detection means, and white line decision means for applying a predetermined signal to heat accumulation index-count means, depending upon the count value of the white line count means.
摘要:
A first cutter 130 (cutting unit) is provided between a color recording unit 120 (the first printing unit) and an overcoat recording unit 140 (the second printing unit). A portion whereon color printing is completed by the color recording unit 120 of a recording paper 200 (printing medium) is cut off by the first cutter 130 and detached. An overcoat recording unit 140 performs an overcoat process on the detached recording paper (printing medium strip). In parallel with this, the color recording unit 120 performs next color printing on the recording paper 200. This makes it possible to reduce a printing time in a printing device including a plurality of printing processes without deteriorating printing quality. Further, an useless paper feeding is eliminated by optimally arranging the color recording unit 120, the first cutter 130, the overcoat recording unit 140, and the second cutter 160, etc. in accordance with a size of a printing area.
摘要:
An authenticating device 100 includes an authentication processing unit 197 to perform an authentication process with a communication device 200 using an authentication key, an update key generating unit 160 to generate a new authentication key when the communication device 200 does not hold an authentication key to be used in the authentication process by the authentication processing unit 197, and to generate a new authentication key for updating the authentication key when the communication device 200 holds the authentication key but the authentication process with the communication device 200 by the authentication processing unit 197 fails. The authentication processing unit 197 performs again the authentication process with the communication device 200 using the new authentication key generated by the update key generating unit 160.
摘要:
It is aimed, for example, to reduce an amount of power consumption of an operation concerning data encryption or decryption and to make it difficult to perform a power analysis. In the case an exclusive OR operation between 32-bit input data and a 32-bit key is performed to obtain output data of 32 bits, the input data is kept in an input shift register 105 of 32 bits and the key is kept in a key shift register 106 of 32 bits. Then, 1 bit of the input data and 1 bit of the key are input into a serial operator 107, and an exclusive OR of 1 bit is obtained and shifted to the left end of the input shift register 105. The key shift register 106 performs a cyclic right shift. By performing the above thirty-two times, the operation of 32 bits is completed and the last result is kept in the input shift register 105.
摘要:
A blocking mask and an electrode coating are formed using a gold film. The blocking mask and the electrode coating are formed together by printing an organic gold paste only in a necessary part and baking the printed organic gold paste.
摘要:
Trichromatic light exposed through a liquid crystal panel upon which liquid crystal shutter elements are two-dimensionally arranged is exposed so as to form an image in the same position on a photosensitive recording medium by moving the photosensitive recording medium opposite the array of liquid crystal shutter elements. For example, the liquid crystal panel is provided with red liquid crystal shutter element rows, green liquid crystal shutter element rows, and blue liquid crystal shutter element rows, each arrayed with m liquid crystal shutter elements in a direction perpendicular to a direction of conveyance of the photosensitive recording medium, these element rows being arranged repetitively in an appropriate order at constant pitch such that (n+2) rows are arranged in the direction of conveyance of the photosensitive recording medium. Exposure through the liquid crystal shutter elements is activated every time the photosensitive recording medium is conveyed by the same distance as the constant pitch.
摘要:
A multi-gradation recording apparatus whose circuits are simplified by reducing the number of recording gradation level bits specified to each recording element without reducing the recording resolution and whose idle time in which no recording is performed to the thermal head is shortened to increase its recording speed.
摘要:
An information storage device which can record highly reliable information is provided. The moving object information storage device 3 is an information storage device equipped in a moving object 1, and includes: a moving object information storage unit 32 storing moving object information based on information detected by sensors which detect information related to the moving object 1; a tamper preventing unit 20 obtaining specifying information which can specify the moving object 1, and generating integrity information to be used for verifying if at least either the specifying information or the moving object information is tampered or not based on the obtained specifying information and the moving object information stored in the moving object information storage unit 32; and an integrity information storage unit 33 storing the integrity information generated by the tamper preventing unit 20.
摘要:
An information storage device which can record highly reliable information is provided. The moving object information storage device 3 is an information storage device equipped in a moving object 1, and includes: a moving object information storage unit 32 storing moving object information based on information detected by sensors which detect information related to the moving object 1; a tamper preventing unit 20 obtaining specifying information which can specify the moving object 1, and generating integrity information to be used for verifying if at least either the specifying information or the moving object information is tampered or not based on the obtained specifying information and the moving object information stored in the moving object information storage unit 32; and an integrity information storage unit 33 storing the integrity information generated by the tamper preventing unit 20.