摘要:
A content protection system prevents illegal key acquisition, without checking uniqueness of device keys. The content protection system includes a key data generation apparatus and a user terminal. The key data generation apparatus converts first key data, which is for using content, based on a predetermined conversion rule, thereby generating second key data, encrypts the second key data using a device key held by valid terminals, and outputs the encrypted key data. The user terminal obtains the encrypted key data, decrypts the encrypted key data using a device key held by the user terminal, thereby generating second key data, converts the second key data based on a re-conversion rule corresponding to the conversion rule, thereby generating the first key data, and uses the content with use of the generated first key data.
摘要:
Image forming apparatus including: fixing device thermally fixing unfixed image on recording sheet by causing recording sheet to pass through nip formed by pressing member pressing against outer circumferential surface of heating rotating body having resistance heating layer; temperature measuring unit measuring temperatures of resistance heating layer in measurement regions set by sectioning outer circumferential surface of heating rotating body along rotational axis; information obtaining unit obtaining information indicating temperature changes in measurement regions in one rotational period of heating rotating body, by sampling measured temperatures; and abnormality judging unit judging whether abnormality has occurred in resistance heating layer based on result of comparison of information that is made between measurement regions in each combination, wherein one or more combinations of measurement regions have been set for each of paper-passing and non-paper-passing regions in nip by using all measurement regions in each of paper-passing and non-paper-passing regions.
摘要:
A fixing device for thermally fixing an unfixed image formed on a recording sheet by passing the recording sheet through a fixing nip. The fixing device has: a heat-generating endless belt having, on a circumferential surface thereof, a sheet passing area through which the recording sheet passes; a first pressure member disposed inside a running path of the endless belt; and a second pressure member disposed to press the endless belt against the first pressure member from outside the running path to form the fixing nip. The endless belt includes: a resistive heat layer that generates heat upon receiving electric current; and a pair of electrode layers that receive electric current. The electrode layers flank the sheet passing area. The resistive heat layer is in contact with the electrode layers at a different one of end faces opposing each other in a width direction of the resistive heat layer.
摘要:
A fixing device has a presser member, a slide member and a pressure belt. Both ends of the presser member are positioned outside both ends of the slide member. Both ends of the slide member are positioned outside both ends of the pressure belt. Thereby, the slide member and the pressure belt are improved in service life, so that the fixing device as a whole is improved in service life.
摘要:
Manufacturing processes for phase change memory have suffered from the problem of chalcogenide material being susceptible to delamination, since this material exhibits low adhesion to high melting point metals and silicon oxide films. Furthermore, chalcogenide material has low thermal stability and hence tends to sublime during the manufacturing process of phase change memory. According to the present invention, conductive or insulative adhesive layers are formed over and under the chalcogenide material layer to enhance its delamination strength. Further, a protective film made up of a nitride film is formed on the sidewalls of the chalcogenide material layer to prevent sublimation of the chalcogenide material layer.
摘要:
A display substrate is disclosed comprising: a supporting substrate; an organic resin layer formed on the supporting substrate; and a transparent electrode formed on the organic resin layer, wherein the transparent electrode includes: a first layer containing a zinc oxide and formed in close contact with the organic resin layer; and a second layer containing a zinc oxide and which has a thickness thicker than a thickness of the first layer and is formed on the first layer, wherein the first layer is deposited by either one of a DC sputtering and a DC magnetron sputtering, and the second layer is deposited by any one of a radio frequency sputtering, a radio frequency magnetron sputtering, a radio frequency superimposing a DC sputtering, and a radio frequency superimposing a DC magnetron sputtering, and the display substrate is available, for example, as the substrate having a transparent electrode for counter electrode of liquid crystal display device.
摘要:
A broadcast receiving device includes a table storage component, a viewing control acquisition component, a first determination component, a table acquisition component and a table updating component. The first determination component determines whether or not one of a following is satisfied: a column determination condition that a column number of a program viewing control information is greater than a first specific number of a first viewing control table, and a row determination condition that a row number of the program viewing control information is greater than a second specific number of the first viewing control table. The table acquisition component acquires a second viewing control table via a television broadcast when the first determination component determines that one of the column determination condition and the row determination condition is satisfied. The table updating component replaces the first viewing control table with the second viewing control table.
摘要:
A fixing device thermally fixes an unfixed toner image onto a recording sheet and includes: a rotatable heating element that is endless and includes a resistive heating layer that generates heat upon application of voltage; a power source for placing voltage across the resistive heating layer; an ammeter for measuring the electric current flowing through the resistive heating layer, and a controller for determining whether the resistive heating layer has a scratch by monitoring an amount of change between a value of electric current that flows through the resistive heating in absence of a scratch and a value of electric current actually measured by the ammeter. The resistive heating layer exhibits resistivity anisotropy satisfying R1
摘要:
A fixing device for fixing a toner image onto a recording sheet, the fixing device comprising: a fixing belt including, on an inner circumference side thereof, a resistance heating layer, extending over entire circumference of the fixing belt, operable to emit heat upon flowing of an electric current therethrough; a pressing member operable to press an outer circumference of the fixing belt to form a fixing nip therebetween so that, while the recording sheet passes through the fixing nip, the toner image is fixed onto the recording sheet; and a pair of power supply members arranged inside the fixing belt along the circumferential direction with a predetermined distance therebetween, the power supply members being in contact with the inner circumferential surface of the resistance heating layer in an electrically conductive state along a direction perpendicular to the circumferential direction.
摘要:
A fixing device for fixing an unfixed image on a recording sheet passing through a fixing nip formed by pressing a pressing member against an inside surface of a pressure belt via a low friction sheet, so that an outside surface of the pressure belt presses against a fixing member, wherein the pressing member includes a first pressing part whose front-side portion is an elastic pressing part, and a second pressing part whose front face presses against a rear face of the first pressing part, the second pressing part has a side wall near an upstream portion of the first pressing part that is upstream from the front-side portion with respect to a rotation direction of the pressure belt, and an upstream end of the low friction sheet, upstream from the other end with respect to the rotation direction, is sandwiched between the side wall and the upstream portion.