Invalidity dossier
US 8271665
Added 9/21/2026, 10:42:59 AM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US 8,271,665 B2
Title: Internet protocol camera management system and method
Patent number / application: US 8,271,665 B2; Application US 12/844,809; earlier publication US 2011/0289228 A1.
Assignee: Hon Hai Precision Industry Co., Ltd. (original and current assignee per the source).
Inventors: Yang-Yuan Chen and Ming-Chih Hsieh.
Key dates: Prior art date and priority date 2010-05-19; filing date 2010-07-27; publication of US 2011/0289228 A1 on 2011-11-24; granted and published as US 8,271,665 B2 on 2012-09-18. Legal status listed as "Expired – Fee Related," with an adjusted expiration of 2031-05-17; the source notes the status is an assumption, not a legal conclusion.
Purpose: IP cameras receive IP addresses from a DHCP server, so an address may change dynamically (e.g., after a network error). The disclosed system addresses the problem that a control center may keep trying to reach a camera at its old IP address, delaying resumption of the connection.
Plain-language scope: The system reads stored controlling parameters, including the total number of communication channels, each channel's number, and the MAC address of the IP camera corresponding to each channel. It selects a channel, determines that camera's MAC address, then searches the Internet for the camera's IP address using that MAC address, and establishes the connection through the found IP address. Video image data is then acquired over the channel, recorded to storage, and displayed on a display interface provided for each channel (e.g., sixteen channels, sixteen interfaces). If connection fails (e.g., camera unpowered), a dialog box informs the user and the procedure retries. Because searching is keyed to the MAC address, connection can be resumed in time even if the IP address changed.
Source: https://patents.google.com/patent/US8271665/en
What the excerpt does not establish: It provides no claims text, so exact claim scope and claim numbering are not verifiable here; it does not establish examination history, prior-art references relied upon, litigation, ownership transfers, validity, or enforceability. It also does not specify hardware models, protocols beyond HTTP-oriented classification, or DHPC server details.
Generated 10/1/2026, 10:01:12 PM
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
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