Prior art

The analysis of US patent 12,160,681 identifies prior art through its own "Prior Art Documents" section and a broader "Citations" list. The patent explicitly discusses two prior art documents, which are considered the most relevant as detailed by the inventors themselves.

Most Relevant Prior Art (Explicitly Discussed in US12160681)

1. Japanese PCT Publication No. 2006-519549 (Patent Document 1)

• Full Citation: JP2006519549A (English equivalent: WO2006052340A2, US20060095638A1, US7353158B2, US20060129370A1 - the given citation in US12160681 is JP2006519549A).
• Publication/Filing Date: The Japanese PCT Publication date is 2006-08-24. The original priority date from which it claims is 2003-02-27.
• Brief Description: This patent describes a method for a source (video transmitter) to quickly read EDID (Extended Display Identification Data) from a display (video receiver). It involves a master simulator on the display side continuously polling for changes in a slave (EDID) and maintaining the current condition in a shadow memory within a slave simulator on the source side. This allows the master to read directly from the shadow memory without detecting a wireless link.
• Potential Anticipation (35 U.S.C. § 102): While this document addresses the problem of quickly reading EDID, the patent 12,160,681 distinguishes itself by criticizing the continuous polling and periodic EDID transmission inherent in this method, stating it generates processes even when not needed. The independent claims of US12160681 (Claims 1, 9, 11, 19) focus on using a "history number" or "revision value" to conditionally transmit EDID only when a mismatch is detected, thereby minimizing transmission volume. Patent Document 1 does not appear to anticipate this specific mechanism of comparing numerical revision values to determine the necessity of full EDID transmission.

2. Japanese Patent Laying-Open No. 2000-194346 (Patent Document 2)

• Full Citation: JP2000194346A.
• Publication/Filing Date: Publication date is 2000-07-14. The priority date is 1998-12-28.
• Brief Description: This patent describes a system where, upon a change in EDID information, corresponding data in a rewritable memory is updated. Additionally, a unique product ID within that EDID information is rewritten, and the updated EDID is transmitted to a personal computer via a DDC communication function.
• Potential Anticipation (35 U.S.C. § 102): Patent 12,160,681 acknowledges that this method allows detecting EDID changes by reading a unique product ID. However, it critiques this approach for potentially "losing the identification information, as being the ID unique to the product, originally." The independent claims of US12160681 (Claims 1, 9, 11, 19) involve comparing an incrementing "history number" or "revision value" to trigger EDID transmission. While the unique product ID serves a similar function as an indicator of change, the mechanism of an incrementally updated history number (which is explicitly distinguished from a product ID) and the conditional transmission logic of US12160681 appear to differ from Patent Document 2.

Other Cited Prior Art

US patent 12,160,681 also lists numerous other patent documents under its "Citations" section. However, the patent's detailed description does not provide a brief overview or analysis of how these documents specifically relate to or are distinguished from the claimed invention. Without access to the full text of each of these cited patents, it is not possible to confidently provide a brief description for each or determine which specific claims of US12160681 they might anticipate under 35 U.S.C. § 102.

For completeness, the additional patent citations listed are:

• JPH05250239A
• JPH10154121A
• US6536041B1
• WO2000001191A1
• EP1093319A1
• US6996837B1
• US20050144651A1
• US20020023270A1
• US7028057B1
• US7162499B2
• US20030093792A1
• US20070008302A1
• US20020085023A1
• US20040003403A1
• US7151575B1
• JP2004110166A
• US20040054910A1
• US20080191582A1
• US20040187151A1
• US20050210501A1
• CN101053011A
• US7353158B2
• US20070222779A1
• US20070230909A1
• JP2007267116A
• US20080046950A1
• JP2008048136A
• JP2008102786A
• US20080320539A1
• JP2009004877A
• JP2009049787A