초록 ▼

A portable, pocketbook-sized computer is provided with the features of a palmtop computer as well as video conferencing ability. A hinged design is provided so that the unit can fold shut. On one side, a computer unit is housed, including a full keyboard and a monitor, while the other side houses a

A portable, pocketbook-sized computer is provided with the features of a palmtop computer as well as video conferencing ability. A hinged design is provided so that the unit can fold shut. On one side, a computer unit is housed, including a full keyboard and a monitor, while the other side houses a mobile telephone unit, including a numeric keyboard and similarly sized monitor. The spine included a rotating camera. The units communicated so that the monitors can serve as video phone monitors, each showing one of the communicating parties. In a computer mode, both monitors can operate to display text on figures. Recessed character keys and raised operator keys enable rapid operation despite closely spaced keys. A ball-ended pen is provided for this purpose, sized to fall into one of the recesses at a time. Additionally, the pen is provided with wireless communication with the computer unit to silently alert the owner of incoming calls, or to use as a microphone.

대표청구항 ▼

A portable, pocketbook-sized computer is provided with the features of a palmtop computer as well as video conferencing ability. A hinged design is provided so that the unit can fold shut. On one side, a computer unit is housed, including a full keyboard and a monitor, while the other side houses a

A portable, pocketbook-sized computer is provided with the features of a palmtop computer as well as video conferencing ability. A hinged design is provided so that the unit can fold shut. On one side, a computer unit is housed, including a full keyboard and a monitor, while the other side houses a mobile telephone unit, including a numeric keyboard and similarly sized monitor. The spine included a rotating camera. The units communicated so that the monitors can serve as video phone monitors, each showing one of the communicating parties. In a computer mode, both monitors can operate to display text on figures. Recessed character keys and raised operator keys enable rapid operation despite closely spaced keys. A ball-ended pen is provided for this purpose, sized to fall into one of the recesses at a time. Additionally, the pen is provided with wireless communication with the computer unit to silently alert the owner of incoming calls, or to use as a microphone. of said each writing electrode relative to said charge injection layer is set to be larger than the sectional area of said each conductive particle. 9. An image forming apparatus as claimed in claim 1, wherein said charge injection layer includes conductive particles, the contact area of said each writing electrode relative to said charge injection layer is set to be smaller than the sectional area of said each conductive particle, and the maximum dimension of the section of said each conductive particle is set to be smaller than the distance between adjacent writing electrodes. 10. An image forming apparatus comprising at least: an image carrier on which an electrostatic latent image is formed and a writing device for writing said electrostatic latent image on said image carrier, wherein said electrostatic latent image is written on said image carrier by said writing device, wherein said writing device has writing electrodes for writing said electrostatic latent image on said image carrier and a flexible substrate for supporting said writing electrodes, said image carrier has a conductive substrate to which a low voltage, based on the absolute value, is supplied, and said image carrier is provided with a multi-layer structure composed of a dielectric layer formed on said conductive substrate and a low-resistance layer, i.e. a charge injection layer, formed on said dielectric layer, said writing electrodes are in contact with said charge injection layer, whereby said electrostatic latent image is written dominantly by charge injection between said writing electrodes and said charge injection layer. 11. An image forming apparatus as claimed in claim 10, wherein the surface resistance of said charge injection layer is set to satisfy "electric resistance in the vertical direction121is the thickness of said charge injection layer. 15. An image forming apparatus which forms an electrostatic latent image on an image carrier by using a writing device comprising a plurality of writing electrodes which are arranged in contact with said image carrier along a direction parallel to the axial direction of said image carrier, wherein said image carrier comprises a dielectric layer formed on a conductive substrate and a charge injection layer formed on said dielectric layer, and is set to satisfy the following relation: d12s/ρv wherein d1is the thickness of said charge injection layer, ρvis the volume resistivity in the depth direction of said charge injection layer, and ρsis the volume resistivity in the surface direction of said charge injection layer. 16. An image forming apparatus as claimed in claim 15, wherein ρs>ρvis satisfied. 17. An image forming apparatus which forms an electrostatic latent image on an image carrier by using a writing device comprising a plurality of writing electrodes which are arranged in contact wit