Prior art

The USPTO provides tools for searching patents, including Patent Public Search, which allows users to search databases of patents and patent application publications.

To identify the most relevant prior art for US patent 12193790, I will analyze the patent's cited references. Prior art includes any publicly available information that predates a patent filing and is used by patent examiners to evaluate an invention's novelty and non-obviousness under 35 U.S.C. § 102 and § 103, respectively.

The Google Patents page for US12193790B2 lists "Prior art keywords" and "Prior art date". However, to provide a comprehensive analysis of prior art, a direct examination of the "Cited By" or "References Cited" section of the patent document itself from the USPTO database is necessary. The current tools do not allow me to directly access this detailed citation list from the USPTO database.

Therefore, I cannot, with high confidence, identify and describe each patent citation, its publication/filing date, a brief description, and which claim(s) it potentially anticipates under 35 U.S.C. § 102 without direct access to the patent document's detailed references cited section.

What I can infer from the available information:

The patent abstract and independent claims (Claims 1, 11, and 20) describe:

• Wearable devices for physiological parameter measurement using semiconductor diodes (LEDs or laser diodes) in the near-infrared range (700-2500 nm).
• Lenses to direct light to tissue (skin).
• A synchronized detection system with spatially separated detectors and ADCs.
• SNR improvement by increasing light intensity and comparing "light on" vs. "light off" signals.
• Object identification capabilities.
• Remote sensing systems with laser diode arrays, Bragg reflectors, pulsed operation (10 MHz-1 GHz), and phase measurement.
• Detection systems measuring phase shift, time-of-flight, and generating images based on amplitude, using lock-in techniques.
• Integration with camera systems and communication with other devices (smartphones, tablets).

The "Prior art keywords" listed on the Google Patents page for US12193790B2 are "light," "fiber," "infrared," "laser," and "optical". These keywords broadly align with the technical domain of the patent. The "Prior art date" is listed as 2012-12-31. This date is significant as any public disclosure before this date could potentially be considered prior art.

To perform the requested analysis accurately, I would need to:

1. Access the full "References Cited" section of US Patent 12193790 directly from the USPTO database.
2. For each cited reference (patent or non-patent literature), retrieve its full text.
3. Analyze the disclosure of each reference against the claims of US12193790 to determine potential anticipation under 35 U.S.C. § 102.