Prior art — US Patent 10108277

The most relevant prior art specifically identified in US patent 10108277 is Japanese Patent Laid-Open No. H8-50535. As the provided full patent text for US10108277 does not include a comprehensive "References Cited" section, and direct search for "Japanese Patent Laid-Open No. H8-50535" did not yield full citation details and abstracts directly from patent databases, the analysis of this prior art is grounded on the description provided within US10108277B2 itself.

Prior Art Reference: Japanese Patent Laid-Open No. H8-50535

Full Citation: Japanese Patent Laid-Open No. H8-50535 (also commonly referred to as JP H08-050535 A).
Publication/Filing Date: The "H8" in the patent number format typically indicates Heisei year 8 in the Japanese calendar, which corresponds to 1996. A precise publication or filing date is not directly available from the provided text or search results.
Brief Description: According to US10108277B2, Japanese Patent Laid-Open No. H8-50535 describes a conventional electrostatic coupling type position detection apparatus. This apparatus includes a pointer (e.g., in the form of a pen) with an integrated circuit (IC) and a position detector with a sensor section comprising a group of conductors. A predetermined signal is transmitted from the pointer to the conductor group of the sensor section. The position detector then specifies the reception position of this transmission signal to detect the position pointed to by the pointer [cite: The provided patent text of US10108277B2, "BACKGROUND ART"].
However, US10108277B2 identifies a problem with this conventional apparatus: it can only detect the pointer's position and cannot detect "information other than the position information such as, for example, the pointer's pressure information (i.e., how much pressure is applied to the pointer tip by a surface of the sensor section) or pen down information, which indicates that the pointer is in contact with the position detector." Additionally, it has a problem detecting "a plurality of different pointers, such as a pointer in the form of a pen and a finger as a pointer, at the same time" [cite: The provided patent text of US10108277B2, "SUMMARY OF THE INVENTION"].
Which Claim(s) it Potentially Anticipates Under 35 U.S.C. § 102:
Under 35 U.S.C. § 102, a prior art reference anticipates a claim if it discloses every limitation of that claim, either explicitly or inherently. Based on the description of Japanese Patent Laid-Open No. H8-50535 provided within US10108277B2, the Japanese patent discloses the fundamental components and function of an electrostatic coupling type position detection system for determining a pointer's position. This includes:
- A pointer having a transmission signal production section.
- A sensor section with conductors disposed in a predetermined pattern configured to receive a signal.
- A mechanism to detect the position pointed to by the pointer based on the received signal.
However, all independent claims (Claims 1, 2, 10, 11, 12, 16, 17, and 18) of US10108277B2 introduce a distinguishing feature: the use of two codes (or a single code produced with controlled timing) where a time difference between these codes is associated with pressure applied to the pointer, and the system detects this pressure based on this time difference. This is explicitly stated in US10108277B2 as an improvement over the conventional apparatus, which "cannot detect information other than the position information such as, for example, the pointer's pressure information." [cite: The provided patent text of US10108277B2, "SUMMARY OF THE INVENTION"]

Therefore, Japanese Patent Laid-Open No. H8-50535 does not anticipate any of the claims (1-18) of US10108277B2 in their entirety under 35 U.S.C. § 102, because it lacks the core inventive step of detecting non-positional information (like pressure) by associating it with a time difference between transmitted codes, as described and claimed in US10108277B2. The Japanese patent serves as background art establishing the known state of electrostatic position detection that only provides positional data.