Personal digital assistant module having a multi-portion keyboar

Details Personal digital assistant module having a multi-portion keyboar Personal digital assistant module having a multi-portion keyboar

1994-09-20

1996-12-31

Ray, Gopal C.

Coded data generation or conversion

Digital code to digital code converters

Tree structure

395887, 341 32, G06F 1300, G06F 1900, H03M 1100

Patent

active

055903827

ABSTRACT:
A personal digital assistant module with a local CPU, memory, and I/O interface has a host interface comprising a bus connected to the local CPU and a connector at a surface of the personal digital assistant for interfacing to a bus connector of a host general-purpose computer, providing direct bus communication between the personal digital assistant and the host general-purpose computer. In an embodiment, the personal digital assistant also stores a security code. The personal digital assistant according to the invention forms a host/satellite combination with a host computer having a docking bay, wherein upon docking a docking protocol controls access by the host to memory of the personal digital assistant based on one or more passwords provided by a user to the host. In another embodiment the personal digital assistant also has an expansion port connected to the local CPU, and expansion peripheral devices may be connected and operated through the expansion port. In yet another embodiment, a full-sized re-geometrically reconfigurable keyboard is provided with cordless communication to the personal digital assistant.

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patent: 5157585 (1992-10-01), Myers
patent: 5220521 (1993-06-01), Kikinis
patent: 5278958 (1994-01-01), Dewa

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