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browse through the 1992-1991 archive, download the patent specification
PATENTS ARCHIVE BY YEAR
Use the tabbed panel (right) to browse through Elonex's patents year by year. Click on each patent reference number to view a brief description. If available, you can also download the full PDF specification. To view PDF documents, you will need Adobe Acrobat Reader.
PATENT: NO. 5331434
DATE 27.10.1992
A photovoltaic film provided with a computer allows the computer to be used as a scanner as well as a conventional computer.
In a preferred embodiment the photovoltaic film is transparent, and is applied directly to the display screen of the computer system. The film is connected to signal processing means connected to the internal bus structure of the computer. A hard copy document is positioned adjacent the film, and control routines loaded to and run on the computer control pixel illumination on the computer screen in a scanning protocol.
Illumination of pixels in conjunction with characteristics of the hard copy at the pixel position cause the signal generated by the photovoltaic film to alter in voltage. Signals from the film are processed and used to generate a bit pattern as the scanned image.
In an alternative embodiment the photovoltaic film is a part of a separate sheet applicable to a computer screen and connectable to an expansion card for connection to the computer, providing a system useful with existing computers.
Download PDF specification (530kb)
A photovoltaic film provided with a computer allows the computer to be used as a scanner as well as a conventional computer.
In a preferred embodiment the photovoltaic film is transparent, and is applied directly to the display screen of the computer system. The film is connected to signal processing means connected to the internal bus structure of the computer. A hard copy document is positioned adjacent the film, and control routines loaded to and run on the computer control pixel illumination on the computer screen in a scanning protocol.
Illumination of pixels in conjunction with characteristics of the hard copy at the pixel position cause the signal generated by the photovoltaic film to alter in voltage. Signals from the film are processed and used to generate a bit pattern as the scanned image.
In an alternative embodiment the photovoltaic film is a part of a separate sheet applicable to a computer screen and connectable to an expansion card for connection to the computer, providing a system useful with existing computers.
Download PDF specification (530kb)
PATENT: NO. 5321428
DATE 04.09.1992
A system using a printer with a fuser-heater has control means for turning off the fuser-heater during times when no printing is required, while leaving the rest of the printing system operable.
Time between print requests is monitored, and the fuser-heater is turned off when a preset time is reached without a print request. A next request turns the fuser-heater back on again. Data is accepted at a reduced rate while a heater warms up.
A system using a printer with a fuser-heater has control means for turning off the fuser-heater during times when no printing is required, while leaving the rest of the printing system operable.
Time between print requests is monitored, and the fuser-heater is turned off when a preset time is reached without a print request. A next request turns the fuser-heater back on again. Data is accepted at a reduced rate while a heater warms up.
PATENT: NO. 5262759
DATE 27.07.1992
A portable computer is configured to accept removable modular display panels of different types that plug into a structure hinged to the body of the computer.
Each display panel has a sliding engagement means fixed along a lower edge, and the hinged structure has a mating sliding engagement means along an upper edge and parallel to the axis of the hinge, allowing a display panel to engage and disengage in the direction of the axis of the hinge.
In another aspect of the invention, in the motion of engaging a display, a two-part, multi-pin electrical connector is also engaged, for conveying control signals to the display.
In an embodiment of the invention, display modules adaptable to the computer have a code stored in a memory device that is accessible on start-up by the computer, to identify and load a display driver routine capable of driving the display module assembled to the computer.
Download PDF specification (520kb)
A portable computer is configured to accept removable modular display panels of different types that plug into a structure hinged to the body of the computer.
Each display panel has a sliding engagement means fixed along a lower edge, and the hinged structure has a mating sliding engagement means along an upper edge and parallel to the axis of the hinge, allowing a display panel to engage and disengage in the direction of the axis of the hinge.
In another aspect of the invention, in the motion of engaging a display, a two-part, multi-pin electrical connector is also engaged, for conveying control signals to the display.
In an embodiment of the invention, display modules adaptable to the computer have a code stored in a memory device that is accessible on start-up by the computer, to identify and load a display driver routine capable of driving the display module assembled to the computer.
Download PDF specification (520kb)
PATENT: NO. 5266531
DATE 28.04.1992
A dynamic holographic display has an array of reflective surfaces formed on cantilever structures substantially parallel to the surface of a substrate, such as a silicon wafer.
A holographic image is formed by controlling electrical currents passed through the cantilever structures to position the reflective surfaces of the cells in the array so the topography forms a hologram, and reflected light interferes to form a holographic image.
In a preferred embodiment, control is by computer and positions of reflective surfaces are determined by calculation from dimensional data available to the control computer.
Download PDF specification (570kb)
A dynamic holographic display has an array of reflective surfaces formed on cantilever structures substantially parallel to the surface of a substrate, such as a silicon wafer.
A holographic image is formed by controlling electrical currents passed through the cantilever structures to position the reflective surfaces of the cells in the array so the topography forms a hologram, and reflected light interferes to form a holographic image.
In a preferred embodiment, control is by computer and positions of reflective surfaces are determined by calculation from dimensional data available to the control computer.
Download PDF specification (570kb)
PATENT: NO. 5239227
DATE 27.01.1992
An electroluminescent display has a viewing surface with electroluminescent cells arranged in a dot matrix array over the surface, each cell having a height orthogonal to the surface from five to ten times any dimension parallel to the surface and each cell having electrodes on opposite sides to apply an electrical field across the cell parallel to the surface of the display.
The dimension between the electrodes is no more than two microns, allowing the display to operate at low voltage levels. Thin film and thick film methods for constructing the display are disclosed.
Download PDF specification (1.4MB)
An electroluminescent display has a viewing surface with electroluminescent cells arranged in a dot matrix array over the surface, each cell having a height orthogonal to the surface from five to ten times any dimension parallel to the surface and each cell having electrodes on opposite sides to apply an electrical field across the cell parallel to the surface of the display.
The dimension between the electrodes is no more than two microns, allowing the display to operate at low voltage levels. Thin film and thick film methods for constructing the display are disclosed.
Download PDF specification (1.4MB)
PATENT: NO. 5220521
DATE 02.01.1992
A keyboard for a computer molded from a flexible material, and rollable into a cylinder for transport and storage.
In a particular embodiment, the keyboard is assembled in two layers, one having molded dome structures for key, and the other sensors and flexible traces for converting keystrokes to electrical signals.
Download PDF specification (780kb)
A keyboard for a computer molded from a flexible material, and rollable into a cylinder for transport and storage.
In a particular embodiment, the keyboard is assembled in two layers, one having molded dome structures for key, and the other sensors and flexible traces for converting keystrokes to electrical signals.
Download PDF specification (780kb)
PATENT: NO. 5151724
DATE 30.01.1991
A dynamic holographic display has an array of reflective surfaces formed on cantilever structures substantially parallel to the surface of a substrate, such as a silicon wafer.
A holographic image is formed by controlling electrical currents passed through the cantilever structures to position the reflective surfaces of the cells in the array so the topography forms a hologram, and reflected light interferes to form a holographic image.
In a preferred embodiment, control is by computer and positions of reflective surfaces are determined by calculation from dimensional data available to the control computer.
Download PDF specification (625kb)
A dynamic holographic display has an array of reflective surfaces formed on cantilever structures substantially parallel to the surface of a substrate, such as a silicon wafer.
A holographic image is formed by controlling electrical currents passed through the cantilever structures to position the reflective surfaces of the cells in the array so the topography forms a hologram, and reflected light interferes to form a holographic image.
In a preferred embodiment, control is by computer and positions of reflective surfaces are determined by calculation from dimensional data available to the control computer.
Download PDF specification (625kb)