System and method for generating invisible notes on a presenter's screen

• US 7,363,589 B1
• Filed: 07/28/2000
• Issued: 04/22/2008
• Est. Priority Date: 07/28/2000
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Tandberg Telecom AS (Cisco Systems, Inc.)
• Inventors: Maeng, Joon
• Primary Examiner(s): Lo; Weilun
• Assistant Examiner(s): TRAN, MYLINH T
• Application Number:
  US09/627,731
• Time in Patent Office: 2,825 Days
• Field of Search: 345/751, 345/753, 345/759, 345/741, 345/743, 345/717, 345/719, 345/853, 345/7.89, 345/790, 345/797, 715/751, 715/753, 715/759, 715/741, 715/719, 715/717, 715/853, 715/789, 715/790, 715/797
• US Class Current: 715/751
• CPC Class Codes: G06Q 10/10 Office automation; Time management
• CPC Class Codes: H04L 12/1822 Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission

Abstract

Disclosed is a system and method for electronic-based communication between a plurality of remote users. The system includes a plurality of remote workstations, interconnected via a communication network, so that users may simultaneously view a target file. Further, the system may permit one or more of the users to view additional information, such as annotations or notes that relate to the target file. Such additional information may be part of the target file or it may be a separate file that corresponds to the target file. Also disclosed are methods for using such a system.

Claims

1. A method of displaying an electronic file to a primary user having a primary workstation coupled to a videoconfercing system via a computer network, and displaying said electronic file to at least one secondary viewer via a secondary workstation connected to said computer network at a remote location, comprising:

conducting a videoconference between said primary and secondary workstations via a multiway conferencing unit (MCU);

displaying contents of a first file on said primary workstation while conducting said videoconference;

displaying said contents of said first file on the secondary workstation during said videoconference;

accessing a second file comprising information relating to said first file;

displaying first and second contents of said second file on said primary workstation as a primary workstation overlay displayed on top of said displayed contents of said first file by replacing a pixel of said displayed contents of said first file displayed on said primary workstation with a pixel of the primary workstation overlay so that the primary workstation overlay and a portion of the displayed contents of said first file are simultaneously viewable on said primary workstation; and

displaying said second contents of said second file on said secondary workstation as a secondary workstation overlay while not displaying said first contents of said second file on said secondary workstation, said secondary workstation overlay displayed on top of said displayed contents of said first file by replacing a pixel of said displayed contents of said first file displayed on said secondary workstation with a pixel of the secondary workstation overlay so that the secondary workstation overlay and a portion of the displayed contents of said first file are simultaneously viewable on said secondary workstation.

2. The method of claim 1, wherein said second file comprises annotations to said first file.

3. The method of claim 2, further comprising:

displaying said contents of said first file on another secondary workstation; and

displaying said first contents of said second file as an overlay to said displayed contents of said first file on said another secondary workstation.

4. The method of claim 3, wherein said primary workstation comprises a plurality of memory units, and wherein said first file is stored in a first memory unit and said second file is stored in a second memory unit.

5. The method of claim 4, wherein said first and second contents of said second file are overlaid over said contents of said first file using means for coupling said first file and said second file.

6. The method of claim 3, wherein said said computer network comprises the Internet.

7. The method of claim 1, wherein said first file and said second file are stored in a server computer.

8. The method of claim 7, wherein said first file and second file are a single file, and said second file contains a code to indicate that said first contents of said second file are not for display at said secondary workstation.

9. The method of claim 1, further comprising activating said first file for editing by said at least one secondary viewer.

10. A machine readable storage medium comprising a set of instructions executable by a computer system to implement a method of displaying an electronic file to a primary user having a primary workstation, said primary workstation coupled to a videoconferencing system via a computer network, and displaying said electronic file to at least one secondary viewer via a secondary workstation at a remote location, the method comprising:

conducting a videoconference between said primary and secondary workstations via a multiway conferencing unit (MCU);

displaying contents of a first file on said primary workstation while conducting said videoconference;

displaying said contents of said first file on the secondary workstation during said videoconference;

accessing a second file comprising information relating to said first file;

displaying first and second contents of said second file on said primary workstation as a primary workstation overlay on top of said displayed contents of said first file by replacing a pixel of said displayed contents of the first file displayed on the primary workstation with a pixel of the primary workstation overlay so that the primary workstation overlay and a portion of the displayed contents of said first file are simultaneously viewable on said primary workstation; and

displaying said second contents of said second file on said secondary workstation as a secondary workstation overlay while not displaying said first contents of said second file on said secondary workstation, said secondary workstation overlay displayed on top of said displayed contents of said first file by replacing a pixel of said displayed contents of the first file displayed on the secondary workstation with a pixel of the secondary workstation overlay so that the secondary workstation overlay and a portion of the displayed contents of said first file are simultaneously viewable on said secondary workstation.

11. The machine-readable storage medium of claim 10, wherein the machine-readable storage medium includes a magnetic storage medium, including one of a disk and tape storage medium, an optical storage medium, a compact disk memory, a digital video disk storage medium;

a nonvolatile memory storage memory; and

a volatile storage medium.

12. A videoconferencing system, comprising:

a computer network;

a multiway conferencing unit (MCU) connected to said computer network;

a primary workstation coupled to said MCU via said computer network;

a secondary workstation coupled to said MCU via said computer network;

a data server connected to said primary and secondary workstations via said computer network, said data server configured to store said first file and a second file including information relating to said first file; and

a data display controller configured to enable a user at the primary workstation to display said first file, and to display first and second contents of said second file on said primary workstation as a primary workstation overlay displayed on top of said displayed contents of said first file by replacing a pixel of said displayed contents of the first file displayed on the primary workstation with a pixel of the primary workstation overlay so that the primary workstation overlay and a portion of the displayed contents of said first file are simultaneously viewable on said primary workstation,

said data display controller further configured to enable a second user at the secondary workstation to display said first file on said secondary workstation and to display said second contents of said second file as a secondary workstation overlay to said first file while not displaying said first contents of said second file on said secondary workstation, said secondary workstation overlay displayed on top of said displayed contents of said first file by replacing a pixel of said displayed contents of the first file displayed on the secondary workstation with a pixel of the secondary workstation overlay so that the secondary workstation overlay and a portion of the displayed contents of said first file are simultaneously viewable on said secondary workstation.