Remote computer display using graphics primitives sent over a wireless link
DC
First Claim
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1. A remote computer display system comprising:
- a portable computing device (PCD) having a wireless transmitter;
a remote video display electrically connected to a wireless receiver;
the PCD also having a video driver operative to receive video requests issued by a software program executing on the PCD and converting the video requests into graphics primitives which are sent as signals by the wireless transmitter to the wireless receiver;
the wireless receiver being operative to receive the signals sent by the wireless transmitter and to convert the received signals into digital data representing the graphics primitives and also operative to send the digital data to a remote display driver; and
the remote display driver is operative to cause the remote video display to display a video image in response to the digital data sent by the wireless receiver.
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Abstract
A remote computer display for a portable computing device (PCD) utilizing the transfer of graphics primitives over a wireless data link. The present invention utilizes a wireless (RF or optical) transmitter built into a portable computing device to send graphics commands to a remote computer display. A receiver receives the wireless signals and converts the signals into data which produces a graphics image of the remote computer display. To reduce the data link bandwidth needed to transfer images from the PCD to the remote display, graphics primitives such as HPGL are sent over the data link. The PCD includes a video driver to convert video display requests made by the PCD operating system, or an application program executing on the PCD, into the graphics primitives which are then transferred to the remote display over the data link.
55 Citations
21 Claims
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1. A remote computer display system comprising:
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a portable computing device (PCD) having a wireless transmitter;
a remote video display electrically connected to a wireless receiver;
the PCD also having a video driver operative to receive video requests issued by a software program executing on the PCD and converting the video requests into graphics primitives which are sent as signals by the wireless transmitter to the wireless receiver;
the wireless receiver being operative to receive the signals sent by the wireless transmitter and to convert the received signals into digital data representing the graphics primitives and also operative to send the digital data to a remote display driver; and
the remote display driver is operative to cause the remote video display to display a video image in response to the digital data sent by the wireless receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
the wireless transmitter sends graphics primitives to the wireless receiver using infra-red light.
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3. A remote computer display system as in claim 1 wherein:
the wireless transmitter sends graphics primitives to the wireless receiver using radio frequencies (RF).
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4. A remote computer display system as in claim 1 wherein:
the graphics primitives are Hewlett-Packard Co. Graphics Language (HPGL) graphics primitives.
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5. A remote computer display system as in claim 1 wherein:
the wireless receiver is encased in a housing separate from the remote video display.
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6. A remote computer display system as in claim 1 wherein:
the wireless receiver is encased integrally with the remote video display.
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7. A remote computer display system as in claim 2 wherein:
the wireless transmitter is integral with the PCD.
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8. A remote computer display system as in claim 3 wherein:
the wireless transmitter is integral with the PCD.
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9. A remote computer display system comprising:
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a portable computing device (PCD) having a wireless transmitter;
a remote video display electrically connected to a wireless receiver;
the PCD also having a video driver operative to receive video requests issued by a software program executing on the PCD and converting the video requests into graphics primitives which are sent as signals by the wireless transmitter to the wireless receiver;
the wireless receiver being operative to receive the signals sent by the wireless transmitter and to convert the received signals into digital data representing the graphics primitives and also operative to send the digital data to a remote display driver;
the remote display driver is operative cause the remote video display to display a video image in response to the digital data sent by the wireless receiver; and
the video driver is also operative to receive video requests issued by the software program executing on the PCD and send data to a video display internal to the PCD to cause the internal video display to substantially simultaneously display substantially the same video image as the remote display. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
the wireless transmitter sends graphics primitives to the wireless receiver using infra-red light.
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11. A remote computer display system as in claim 9 wherein:
the wireless transmitter sends graphics primitives to the wireless receiver using radio frequencies (RF).
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12. A remote computer display system as in claim 9 wherein:
the graphics primitives are Hewlett-Packard Co. Graphics Language (HPGL) graphics primitives.
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13. A remote computer display system as in claim 9 wherein:
the wireless receiver is encased in a housing separate from the remote video display.
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14. A remote computer display system as in claim 9 wherein:
the wireless receiver is encased integrally with the remote video display.
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15. A remote computer display system as in claim 10 wherein:
the wireless transmitter is integral with the PCD.
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16. A remote computer display system as in claim 11 wherein:
the wireless transmitter is integral with the PCD.
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17. A remote computer display system comprising:
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a video display; and
,a wireless receiver, electrically connected to the video display, the wireless receiver being operative to receive signals sent by a wireless transmitter, the signals sent by the wireless transmitter being video requests having been converted into graphics primitives by a remote computing system, wherein the wireless receiver includes;
converter means for converting the received signals into digital data representing the graphics primitives, and, a remote display driver which receives the digital data and causes the remote video display to display a video image in response to the digital data sent by the wireless receiver. - View Dependent Claims (18, 19)
the wireless receiver is encased in a housing separate from the remote video display.
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19. A remote computer display system as in claim 17 wherein:
the wireless receiver is encased integrally with the remote video display.
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20. A computing device comprising:
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a wireless transmitter;
a software program means for issuing video requests; and
,a video driver for converting the video requests into graphics primitives and for sending the graphics primitives to the wireless transmitter;
wherein the wireless transmitter includes means for converting the graphics primitives into digital data representing the graphics primitives and for sending the digital data to a wireless receiver connected to a remote display. - View Dependent Claims (21)
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Specification
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Litigation Data
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Current AssigneeUniloc 2017 LLC (SoftBank Group Corp.)
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Original AssigneeHewlett-Packard Development Company, L.P. (HP Inc.)
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InventorsReilly, John R.
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Primary Examiner(s)Shalwala, Bipin
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Assistant Examiner(s)LEWIS, DAVID LEE
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Application NumberUS08/430,943Time in Patent Office2,973 DaysField of Search345/1, 345/2, 345/3, 345/202, 345/901, 345/2.1, 345/2.2, 345/2.3, 345/169, 364/514.A, 340/176, 340/825.69, 340/825.72, 340/825.44, 395/200.03, 395/200.04, 395/200.09, 395/200.18, 395/154, 395/151, 395/155, 395/161US Class Current345/169CPC Class CodesG06F 3/14 Digital output to display d...G06F 3/1454 involving copying of the di...
