US5907686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display control system having a PCMCIA interface
Assignee: Toshiba Corp
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Filing: 1997-07-09
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Granted: 1999-05-25
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Expires: 2017-07-09
Abstract
Abstract A portable computer comprising a PCMCIA card connector, a PCMCIA controller, a multimedia display controller, a moving-picture bus, a system bus, and a switching control circuit. The PCMCIA controller controls transfer of data to and from a PC card connected to the PCMCIA card connector. The multimedia display controller can process moving-picture data to display moving pictures. The moving-picture bus connects the PCMCIA controller and the multimedia display controller, for supplying moving-picture data only. The switching control circuit is incorporated in the PCMCIA controller, for connecting the PCMCIA card connector to the moving-picture bus or to the system bus.
Inventors
- 👤 Hiroki Zenda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:00
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/24; G; G06; G06F; G06F13/00; G06F13/38; G06F13/40; G06F13/4004; G06F13/4022; G06F3/00; G06F3/14; H04N21/00; H04N21/40; H04N21/41; H04N21/414; H04N21/41407; H04N21/418; H04N21/4183; H04N21/426
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
A computer, comprising: a bus; a connection portion removably connected to a card; a card controller connected to said bus and the connection portion, and configured to control transfer of data from the connection portion to said bus; a display controller connected to said bus and having a receiving portion configured to receive moving-picture data supplied from the connection portion through the bus, and configured to process the moving-picture data input through the receiving portion to display moving pictures; and means for determining whether the card connected to the connection portion has a moving-picture function, for enabling the display controller and disabling the card controller upon determining that the card connected to the connection portion has a moving-picture function, and for enabling the card controller and disabling the display controller upon determining that the card connected to the connection portion does not have the moving-picture function.
Claim 2
Dependent Claim
146 words
A computer, comprising: a bus; a connection portion removably connected to a card; a card controller connected to said bus and the connection portion, and configured to control transfer of data from the connection portion to said bus; a display controller connected to said bus and having a receiving portion configured to receive moving-picture data supplied from the connection portion through the bus, and configured to process the moving-picture data input through the receiving portion to display moving pictures; and means for determining whether the card connected to the connection portion has a moving-picture function, for enabling the display controller and disabling the card controller upon determining that the card connected to the connection portion has a moving-picture function, and for enabling the card controller and disabling the display controller upon determining that the card connected to the connection portion does not have the moving-picture function.
Claim 3
Independent Claim
90 words
A method for controlling transfer of card data supplied from a card removably connected to a computer having a card controller connected to a bus and a display controller connected to the bus, comprising the steps of: determining whether the card has a moving picture function; outputting the card data from the card to the bus through the card controller when the card does not have the moving picture function; and outputting the card data from the card directly to the display controller when the card has the moving-picture function.
Claim 4
Independent Claim
90 words
A method for controlling transfer of card data supplied from a card removably connected to a computer having a card controller connected to a bus and a display controller connected to the bus, comprising the steps of: determining whether the card has a moving picture function; outputting the card data from the card to the bus through the card controller when the card does not have the moving picture function; and outputting the card data from the card directly to the display controller when the card has the moving-picture function.
Claim 5
Dependent Claim
119 words
A computer, comprising: a system bus; a card connection portion removably connected to a card; a first data transfer path for transferring data from the card connection portion to the system bus; a display controller connected to said system bus and having a receiving portion configured to receive moving-picture data supplied from the card connection portion through the system bus, and configured to process the moving-picture data input through the receiving portion to display moving pictures; a second data transfer path for transferring data from the card connection portion to the display controller; and a switch for transferring data alternatively to the first data transfer path and the second data transfer path depending on a type of the card.
Claim 6
Dependent Claim
119 words
A computer, comprising: a system bus; a card connection portion removably connected to a card; a first data transfer path for transferring data from the card connection portion to the system bus; a display controller connected to said system bus and having a receiving portion configured to receive moving-picture data supplied from the card connection portion through the system bus, and configured to process the moving-picture data input through the receiving portion to display moving pictures; a second data transfer path for transferring data from the card connection portion to the display controller; and a switch for transferring data alternatively to the first data transfer path and the second data transfer path depending on a type of the card.
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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) | 2002-05-24 | 2002-11-23 | 2003-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-24 | 2006-11-23 | 2007-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-24 | 2010-11-23 | 2011-05-25 | $7700.00 | Window Closed / Lapsed |