Do Hyun Chung

US Patent:

20030231190, Dec 18, 2003

Filed:

Mar 17, 2003

Appl. No.:

10/390124

Inventors:

Bjorn Jawerth - Morrisville NC, US
Do Chung - Raleigh NC, US
Prasanjit Panda - Apex NC, US
Johan Rade - Cary NC, US
Jiangying Zhou - Cary NC, US

International Classification:

G09G005/00

US Classification:

345/660000

Abstract:

Embodiments of the present invention comprise a method for transmitting map data, a method for displaying map data, a system for processing and displaying map data, and a method for rendering line segments on a pixel display. A preferred method for transmitting map data comprises receiving, layering, and simplifying map data and transmitting some of the simplified data. A preferred method for displaying map data comprises receiving compressed map data, decompressing the received data, and rendering the decompressed data on a display device. A preferred system for processing and displaying map data comprises a map database, a map generation sub-system, a map rendering sub-system, and a display device. A preferred method for rendering line segments on a pixel display, comprises, for a line segment from a first endpoint to a second endpoint, rounding off the slope of the line segment and calculating pixel locations based on that rounded off slope.

US Patent:

20070139411, Jun 21, 2007

Filed:

Feb 12, 2007

Appl. No.:

11/705128

Inventors:

Bjorn Jawerth - Morrisville NC, US
Do Chung - Raleigh NC, US
Prasanjit Panda - Apex NC, US
Johan Rade - Cary NC, US
Jiangying Zhou - Cary NC, US

International Classification:

G06T 11/20

US Classification:

345440000

Abstract:

Embodiments of the present invention comprise a method for transmitting map data, a method for displaying map data, a system for processing and displaying map data, and a method for rendering line segments on a pixel display. A preferred method for transmitting map data comprises receiving, layering, and simplifying map data and transmitting some of the simplified data. A preferred method for displaying map data comprises receiving compressed map data, decompressing the received data, and rendering the decompressed data on a display device. A preferred system for processing and displaying map data comprises a map database, a map generation sub-system, a map rendering sub-system, and a display device. A preferred method for rendering line segments on a pixel display comprises, for a line segment from a first endpoint to a second endpoint, rounding off the slope of the line segment and calculating pixel locations based on that rounded off slope.

US Patent:

20110145848, Jun 16, 2011

Filed:

Dec 10, 2009

Appl. No.:

12/635574

Inventors:

Alan Moskowitz - Oakland CA, US
Daniel Dennedy - Castro Valley CA, US
Do H. Chung - San Ramon CA, US

Assignee:

MobiTV, Inc. - Emeryville CA

International Classification:

H04H 60/33

US Classification:

725 13, 725 62, 455413, 455466

Abstract:

Mechanisms are provided for collecting user response information corresponding to a request transmitted as a part of unidirectional media broadcast. Mobile devices used to display media broadcast containing the request, such a survey, are also configured to send information using other communication networks, such as cellular networks. Mobile devices collect users' responses to the request and send information corresponding to these responses to a response processing server. The response processing server in turn processes the information, generate a report, and transmit this report to the broadcasting service. These reports may be used for a variety of purposes. In one example, reports are used to update broadcasted content such that mobile device user can view results of their responses as a part of the updated broadcast.

US Patent:

20110161813, Jun 30, 2011

Filed:

Dec 31, 2009

Appl. No.:

12/651117

Inventors:

Alan Moskowitz - Oakland CA, US
Daniel Dennedy - Castro Valley CA, US
Do H. Chung - San Ramon CA, US

Assignee:

MOBITV, INC. - Emeryville CA

International Classification:

G06F 3/01

US Classification:

715716

Abstract:

Techniques and apparatuses are provided for conditioning media content based on user input. In one implementation, a barker screen is displayed on an output interface of the user device when a request to switch media channels is received. The barker screen may include a request for user input and at least partially block the output interface. As such, the content of the new channel may be at least partially unavailable until user input is received. Furthermore, techniques and apparatuses are provided for transmitting a request for user input to the user device switched to a unidirectional broadcast channel. Information contained in responses generated based on user inputs is then used to adjust media content.

US Patent:

20110231878, Sep 22, 2011

Filed:

Mar 21, 2011

Appl. No.:

13/053093

Inventors:

Kirsten Hunter - San Francisco CA, US
Christopher Chan - San Francisco CA, US
Vasanth Shenoy - San Ramon CA, US
James Collette - Sammamish WA, US
Do H. Chung - San Ramon CA, US
Allen Billing - Lafayette CA, US

Assignee:

MOBITV, INC. - Emeryville CA

International Classification:

H04N 5/445

US Classification:

725 48

Abstract:

Mechanisms are provided for allowing a user to dynamically manage rich media content in an efficient and effective manner. Tiles including media content, personalized video selections, content pack upgrades, and promotions for featured content are presented to a user. Each tile may include calls to view, purchase, discuss, rate, review, or read about associated content. Tiles may be presented as still images, logos, text, or live video. Multiple tiles may be manipulated using keyboard, mouse, touchpad, and/or touchscreen movements, motions, and gestures. In particular examples, an overlay provided on top of a tile mechanism provides a user with additional navigation and management options.

US Patent:

20220382418, Dec 1, 2022

Filed:

Mar 17, 2022

Appl. No.:

17/697713

Inventors:

- San Jose CA, US
Christopher Chan - San Francisco CA, US
Vasanth Shenoy - Fremont CA, US
James Collette - Sammamish CA, US
Do H. Chung - San Ramon CA, US
Allen Billings - Lafayette CA, US

International Classification:

G06F 3/0482
H04N 21/431
H04N 21/462
H04N 21/482
H04N 21/47
G06F 3/04842
H04N 21/472
H04N 21/81

Abstract:

Mechanisms are provided for allowing a user to dynamically manage rich media content in an efficient and effective manner. Tiles including media content, personalized video selections, content pack upgrades, and promotions for featured content are presented to a user. Each tile may include calls to view, purchase, discuss, rate, review, or read about associated content. Tiles may be presented as still images, logos, text, or live video. Multiple tiles may be manipulated using keyboard, mouse, touchpad, and/or touchscreen movements, motions, and gestures. In particular examples, an overlay provided on top of a tile mechanism provides a user with additional navigation and management options.

US Patent:

20190235708, Aug 1, 2019

Filed:

Apr 11, 2019

Appl. No.:

16/382014

Inventors:

- Emeryville CA, US
Christopher Chan - San Francisco CA, US
Vasanth Shenoy - Fremont CA, US
James Collette - Sammamish CA, US
Do H. Chung - San Ramon CA, US
Allen Billings - Lafayette CA, US

Assignee:

MobiTV, Inc. - Emeryville CA

International Classification:

G06F 3/0482
H04N 21/81
H04N 21/472
H04N 5/445
H04N 21/482
H04N 21/462
H04N 21/431
G06F 3/0484

Abstract:

Mechanisms are provided for allowing a user to dynamically manage rich media content in an efficient and effective manner Tiles including media content, personalized video selections, content pack upgrades, and promotions for featured content are presented to a user. Each tile may include calls to view, purchase, discuss, rate, review, or read about associated content. Tiles may be presented as still images, logos, text, or live video. Multiple tiles may be manipulated using keyboard, mouse, touchpad, and/or touchscreen movements, motions, and gestures. In particular examples, an overlay provided on top of a tile mechanism provides a user with additional navigation and management options.

US Patent:

20190095591, Mar 28, 2019

Filed:

Nov 27, 2018

Appl. No.:

16/201717

Inventors:

- Emeryville CA, US
Torbjorn Einarsson - Stockholm, SE
Do Hyun Chung - San Ramon CA, US
Ken Klinner - Lafayette CA, US

Assignee:

MobiTV, Inc. - Emeryville CA

International Classification:

G06F 21/10
H04L 29/06

Abstract:

Techniques and mechanisms described herein facilitate the management of digital rights for media content item presentation. According to various embodiments, a request for a content decryption key may be received at a media application implemented at a computing device. The request may be transmitted by a media content player implemented at the computing device. The request may be transmitted in accordance with a designated key exchange protocol. A license for an encrypted media content item corresponding with the requested content decryption key may be identified at the media application. Based on information included in the license, encrypted key material may be decrypted to create the requested content decryption key via a processor at the computing device. The requested content decryption key may be provided to the media content player.