Patent US4890832A successfully refreshed from Google Patents.
US4890832A
Expired / Lapsed
US
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Compact electronic apparatus with removable processing units
Assignee: Sharp Corp
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Filing: 1988-04-22
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Granted: 1990-01-02
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Expires: 2008-04-22
Abstract
Abstract A compact electronic apparatus comprises a main unit having at least a power supplying section and a display, at least one of several processing units having a key input section and a memory adapted to be removably attached to the main unit and a connecting section for connecting one of said processing units to the main unit. Each one of said processing units to the main unit. Each of the processing units has a different function.
Inventors
- 👤 Shigeki Komaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:34
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/02; G06F15/0225; G06F3/00; G06F3/01; G06F3/02; G06F3/023; G06F3/0238
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
143 words
A compact electronic apparatus comprising: a main unit; a removably, detachable processing unit; and connecting means for connecting said processing unit to said main unit to render said main unit and said processing unit operable; said main unit and said processing unit being inoperable as separate units; said main unit including, power supply means for supplying power to said main unit and for supplying power to said processing unit when said processing unit is connected to said main unit, and display means for displaying information on said main unit; said processing unit including, key input means for inputting information into said processing unit, and memory means for storing data to be used by said processing unit; said connecting means including a recessed portion; said processing unit forming a coplanar surface with said main unit when said recessed portion has received said processing unit.
Claim 2
Dependent Claim
143 words
A compact electronic apparatus comprising: a main unit; a removably, detachable processing unit; and connecting means for connecting said processing unit to said main unit to render said main unit and said processing unit operable; said main unit and said processing unit being inoperable as separate units; said main unit including, power supply means for supplying power to said main unit and for supplying power to said processing unit when said processing unit is connected to said main unit, and display means for displaying information on said main unit; said processing unit including, key input means for inputting information into said processing unit, and memory means for storing data to be used by said processing unit; said connecting means including a recessed portion; said processing unit forming a coplanar surface with said main unit when said recessed portion has received said processing unit.
Claim 3
Dependent Claim
36 words
The compact electronic apparatus as claimed in claim 1, wherein said main unit further includes arithmetic means; and wherein said memory means includes program memory means for storing programs to be used by said processing unit.
Claim 4
Dependent Claim
28 words
The compact electronic apparatus as claimed in claim 1, wherein said processing unit includes connecting terminals means for supplying signals from said processing unit to said display means.
Claim 5
Dependent Claim
22 words
The compact electronic apparatus as claimed in claim 1, wherein said memory means includes game memory means for storing a game program.
Claim 6
Dependent Claim
17 words
The compact electronic apparatus as claimed in 1, wherein said processing unit has a card type configuration.
Claim 7
Dependent Claim
20 words
The compact electronic apparatus as claimed in claim 1, further comprising case means for storing the compact electronic apparatus therein.
Claim 8
Dependent Claim
52 words
The compact electronic apparatus as claimed in claim 6, wherein said case means includes first cover means for storing said main unit and said processing unit, said processing unit being connected to said main unit; and second cover means, connected to said first cover means, for covering said main unit being stored.
Claim 9
Dependent Claim
30 words
The compact electronic apparatus as claimed in claim 7, wherein said second cover means includes storing means for storing a plurality of processing units not connected to said main unit.
Claim 10
Dependent Claim
24 words
The compact electronic apparatus as claimed in claim 8, wherein said storing means is made of a material which prevents generation of static electricity.
Claim 11
Dependent Claim
16 words
The compact electronic apparatus as claimed in claim 9, wherein said material is a conductive material.
Claim 12
Dependent Claim
19 words
The compact electronic apparatus as claimed in claim 10, wherein said conductive material is a vinyl chloride containing carbon.
Claim 13
Dependent Claim
40 words
The compact electronic apparatus as claimed in 11, wherein said first cover means includes top and bottom holding means, disposed at top and bottom portions of an inside surface of said first cover means, for slidably receiving said main unit.
Claim 14
Dependent Claim
52 words
The compact electronic apparatus as claimed in claim 12, wherein said bottom holding means extends across said recessed portion of said main unit to define an aperture through which said processing units are slidably introduced into and removed from said main unit without removing said main unit from said first cover means.
Claim 15
Dependent Claim
26 words
The compact electronic apparatus as claimed in claim 1, wherein said processing unit is a thin film device which is slidably disposed within said main unit.
Claim 16
Dependent Claim
35 words
The compact electronic apparatus as claimed in claim 14, wherein said processing unit includes electrical connecting means, extending across one end of said processing unit, for electrically connecting said processing unit to said main unit.
Claim 17
Dependent Claim
54 words
The compact electronics apparatus as claimed in claim 1, wherein said recessed portion is defined by two lateral walls and one end wall and further contains an open end, said lateral walls functioning to enable said processing unit to be slidably mounted through said open end into said recessed portion of said main unit.
Claim 18
Dependent Claim
68 words
The compact electronic apparatus as claimed in claim 16, wherein said end wall in said main unit is provided with electrical connectors and said processing unit is provided with electrical connecting terminals, whereby when said processing unit is disposed in said recessed portion of said main unit, said electrical connectors engage said electrical connecting terminals to form an electrical connection between said processing unit and said main unit.
Claim 19
Dependent Claim
29 words
The compact electronic apparatus as claimed in claim 17, further comprising terminal pressure plate means for providing a pressure connection between said electrical connectors and said electrical connecting terminals.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-01 | 1993-07-03 | 1994-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-01 | 1997-07-03 | 1998-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-01 | 2001-07-03 | 2002-01-02 | $7700.00 | Window Closed / Lapsed |