Detachable portable personal computer

• US 5,319,582 A
• Filed: 10/01/1991
• Issued: 06/07/1994
• Est. Priority Date: 07/12/1991
• Status: Expired due to Fees

• Current Assignee: Hsi K. Ma
• Original Assignee: Hsi K. Ma
• Inventors: Ma, Hsi K.
• Primary Examiner(s): Mai, Tan V.
• Application Number:
  US07/769,214
• Time in Patent Office: 980 Days
• Field of Search: 364/708, 340/706, 340/709, 340/710
• US Class Current: 345/169
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1632 External expansion units, e.g. docking stations
• CPC Class Codes: G06F 1/169 the I/O peripheral being an integrated pointing device, e.g. trackball in the palm rest area, mini-joystick integrated between keyboard keys, touch pads or touch stripes G06F1/1643 takes precedence; constructional details of pointing devices G06F3/033

Abstract

A detachable portable personal computer includes an upper unit pivotably electrically connected to a bottom unit. The upper unit includes a liquid crystal display, a motherboard, a printer interface, and RS-232 interface and cathod ray tube interface, an integrated circuit card, a mouse, a keyboard interface and a power supply unit. The bottom unit includes a keyboard, a power supply unit, a hard disk drive and a floppy disk drive. The top unit can be connected to the keyboard to form a word processor or, the top and bottom unit can be connected into a notebook computer, the top and bottom units can be detached from each other for use independently.

Claims

1. A detachable portable personal computer comprising:

an upper unit having a liquid crystal display, and data input means for permitting a user to input data and commands, a motherboard fastened at an inside of the upper unit, interface means for electrically connecting said upper unit to an external device, an integrated circuit card, a keyboard interface and a power supply respectively fastened at two opposite ends of the upper unit and electrically connected together, and two pivot joints located on a bottom edge of the upper unit at two opposite ends;

a bottom unit comprising a keyboard at a top of the bottom unit, a power supply, a disc drive fastened below said keyboard, and first and second connectors at a top of the bottom unit at two corners of the bottom unit;

means for electrically connecting said upper unit to said bottom unit upon fastening said two pivot joints in said first and second connectors to form a complete notebook computer; and

means for detaching said upper unit from said bottom unit for use separately from said bottom unit.

2. A detachable portable personal computer as claimed in claim 1, wherein said input means comprises a trackball mounted on a front face of said upper unit.

3. A detachable portable personal computer as claimed in claim 1, wherein said input means is a touch screen for the liquid crystal display.

4. A detachable portable personal computer as claimed in claim 1, wherein said interface means comprises a printer interface, a cathode ray tube interface, and an RS-232 interface.