Wireless file transmission

• US 20030146907A1
• Filed: 07/19/2002
• Published: 08/07/2003
• Est. Priority Date: 10/16/1995
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Boals, Daniel A., Wilson, James Y.
• Granted Patent: US 7,423,637 B2
• Time in Patent Office: Days
• US Class Current: 345/179
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/131 Protocols for games, networked simulations or virtual reality
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/5651 Reducing the amount or size of exchanged application data
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/75 Indicating network or usage conditions on the user display
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/162 involving adaptations of sockets based mechanisms secure socket layer H04L63/168
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A computer system which includes one or more wireless interface devices that are adapted to communicate with a remote host over a radio link. Each of the wireless interface devices is a pen-based device which includes an ink field in which pen events are translated into pen data packets and transmitted to the remote host over the radio link. Local inking is provided at the wireless interface device in order to maintain the pen paradigm in essentially real time.

Claims

1. A computer system comprising:

one or more wireless interface devices, each wireless interface device being a pen-based system and including a digitizer responsive to pen events, said wireless interface devices also including means for enabling radio communication with a remote host and means for translating pen events into pen data packets and transmitting said pen data packets to a remote host for processing; and

a host for communicating with said one or more wireless interface devices, said host including means for enabling communication with said one or more wireless interface devices by way of a radio link, said host also including means for receiving and processing said pen data packets.

2. The system as recited in claim 1, wherein said one or more wireless interface devices include means for providing local inking of said pen events at said one or more wireless interface devices.

3. The system as recited in claim 1, wherein said translating means includes an embedded ink field control wherein pen events within said embedded ink field control are translated into pen data packets for transmission to a remote host.

4. The system as recited in claim 1, wherein said host is a server connected to a local area network (LAN) defining a LAN segment.

5. The system as recited in claim 1, wherein said host includes means for communicating with a single wireless interface device.

6. The system as recited in claim 1, wherein said host includes means for communicating with a plurality of wireless interface devices.

7. The system as recited in claim 1, wherein said enabling means includes one or more wireless LAN adapters.

8. The system as recited in claim 1, further including switching means which, in turn, includes an embedded ink field control which enables the wireless interface device to be switched to and from a pen mode from a second mode of operation as a function of pen events relative to the ink field control.

9. The system as recited in claim 8, further including means for establishing a predetermined default state for the mode of operation during predetermined conditions.

10. The system as recited in claim 9, wherein predetermined default state is a non-pen mode.

11. The system as recited in claim 9, wherein said predetermined conditions include power-up of said wireless interface device.

12. The system as recited in claim 8, wherein said switching means includes a predetermined default state on power-up of said wireless interface device.

13. The system as recited in claim 11, wherein said predetermined default state is a mouse mode.

14. The system as recited in claim 11, wherein said predetermined default state is a pen mode.

15. The system as recited in claim 8, further including means for disabling said ink field control.

16. The system as recited in claim 14, wherein said disabling means includes means for automatically disabling said ink field control as a result of predetermined events.

17. The system as recited in claim 15, wherein said wireless interface device includes a keyboard and said disabling means including means for monitoring said keyboard and disabling said ink field control when one or more predetermined keys are selected.

18. The system as recited in claim 15, wherein said keyboard is an on-screen keyboard.

19. The system as recited in claim 16, wherein said keyboard includes an ALTERNATE key and said disabling means disables said ink field control when said ALTERNATE key is selected.

20. The system as recited in claim 6, wherein said disabling means disables said ink field control when any key on said keyboard is selected.

21. The system as recited in claim 15, wherein said predetermined event includes pen-down events outside said ink field control.

23. The system as recited in claim 21, wherein said enabling means includes one or more wireless LAN adapters.

24. The system as recited in claim 21, wherein said wireless interface device includes an ink field control which enables pen events relative thereto to be translated into pen data.

25. The system as recited in claim 21, wherein said wireless interface device has multiple modes of operation, further including means for establishing a predetermined default state for the mode of operation during predetermined conditions.

26. The system as recited in claim 21, wherein predetermined default state is a non-pen mode.

27. The system as recited in claim 21, wherein said predetermined conditions include power-up of said wireless interface device.

28. The system as recited in claim 21, wherein said switching means includes a predetermined default state on power-up of said wireless interface device.

29. The system as recited in claim 21, wherein said predetermined default state is a non-pen mode.

30. The system as recited in claim 24, wherein said predetermined default state is a pen mode.

31. The system as recited in claim 23, further including means for disabling said ink field control.

32. The system as recited in claim 30, wherein said disabling means includes means for automatically disabling said ink field control as a result of predetermined events.

33. The system as recited in claim 23, wherein said wireless interface device includes a keyboard and said disabling means including means for monitoring said keyboard and disabling said ink field control when one or more predetermined keys are selected.

34. The system as recited in claim 23, wherein said keyboard is an on-screen keyboard.

35. The system as recited in claim 23, wherein said keyboard includes an ALTERNATE key and said disabling means disables said ink field control when said ALTERNATE key is selected.

36. The system as recited in claim 23, wherein said disabling means disables said ink field control when any key on said keyboard is selected.

37. The system as recited in claim 23, wherein said predetermined event includes pen-down events outside said ink field control.

22. A wireless interface device comprising:

means for enabling radio communication with a remote host;

a digitizer panel for receiving input data from a passive stylus;

means for translating pen events relative to said digitizer panel to pen data defining a pen mode; and

means for transmitting said pen data to a remote host for processing by way of a radio link during a pen mode; and

means for providing local inking of said pen events.