Patent US3156787

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Patent US3156787 — Solid State Hearing System — is the second in the Puharich hearing system patent lineage, filed jointly by Henry K. Puharich and Joseph L. Lawrence on October 23, 1962, and granted November 10, 1964. It is a direct improvement on Patent US2995633 (US 2,995,633, 1961), replacing that patent's earlier piezoelectric transducer arrangement with a miniaturised RF-resonant crystal element and semiconductor diode assembly compact enough to be housed entirely within a dental cap or bridge. Researchers studying Voice to Skull (V2K) and Neuroweapons cite this patent as documenting the transition from experimental proof-of-concept to a functionally engineerable, concealable neural signal delivery device. For an extended analysis in narrative context, see BOOK 3: The Radiohead Protocol. The original document can be found here: File:US3156787-Solid-State-Hearing-System.pdf


Patent Details

Field Detail
Patent Number US 3,156,787
Title Solid State Hearing System
Inventors Henry K. Puharich (87 Hawkes Ave., Ossining, NY) and Joseph L. Lawrence (570 Fort Washington Ave., New York, NY)
Filed October 23, 1962
Granted November 10, 1964
Number of Claims 8

Summary of the Invention

The core advance over Patent US2995633 is a dramatic simplification and miniaturisation of the apparatus required to couple radio-frequency signals into the facial nervous system. The biological target remains identical: the facial hearing system formed by cranial nerves V (trigeminal) and VII (facial), which Puharich had previously established as capable of receiving and processing audio-frequency signals introduced directly into the tissue — substantially bypassing the conventional auditory pathway through the outer and middle ear.

Where the 1961 patent required comparatively bulky piezoelectric transducer arrangements, US 3,156,787 achieves the same signal delivery through a wafer-thin solid-state assembly comprising three elements:

  1. An RF-resonant piezoelectric crystal element — the primary receiver and transducer, tuned to the carrier frequency of the associated external radio transmitter. When the transmitter broadcasts a modulated RF carrier, the crystal resonates and converts that electromagnetic energy into a corresponding electrical signal.
  2. A semiconductor detector diode connected to the crystal's negative terminal — a simple P-N junction device performing detection and rectification of the modulated RF signal, stripping the audio information from the carrier wave and presenting it as a usable electrical stimulus.
  3. Optionally, a second piezoelectric crystal tuned to the audio-frequency range and connected to the positive terminal of the diode. This secondary crystal provides both electrical signal delivery and direct physical (mechanical) vibratory stimulation of adjacent nerve endings, reinforcing the signal along two distinct pathways simultaneously.

Two Implementation Forms

The patent describes two physical configurations in which this assembly may be deployed:

Form 1 — Double Tooth Bridge: The RF-resonant crystal is mounted on one denuded tooth root (stripped of enamel to ensure intimate contact with the periapical nerve endings at the tooth's base). The positive terminal of the diode assembly is then connected via the audio-frequency crystal to an adjacent denuded tooth root. The entire assembly is enclosed within a double dental cap or bridge, rendering it externally indistinguishable from routine dental work. The electrical circuit is completed not through any external conductor but through the body's own nervous system.

Form 2 — Single Tooth Cap: A single dental cap contains the RF crystal and diode. Rather than using an adjacent tooth as the return electrode, circuit completion is achieved through contact between an exposed terminal of the crystal assembly and the nerves of the tongue. This configuration requires only one tooth and relies on the tongue's dense innervation as the return path.

In both forms, the patent explicitly states that the system is designed to deliver modulated electrical signals to viable nerves of the facial nerve system in a manner that substantially bypasses the ear system.

Key Technical Elements

The following technical specifications are drawn directly from the patent's claims and description:

  • RF-resonant crystal material: Lead zirconate titanate (PZT) — a ferroelectric ceramic with high piezoelectric coupling coefficient, tuned to approximately 4 MHz carrier frequency, consistent with the accompanying external transmitter described in the specification.
  • Audio crystal material: Barium titanate — a piezoelectric ceramic with a resonance tunable to the audible frequency range. Its inclusion allows the assembly to produce both electrical nerve stimulation and minute mechanical vibrations in the surrounding dental and periapical tissue.
  • Semiconductor diode: A standard P-N junction rectifier performing envelope detection on the modulated RF carrier.
  • Construction standard: All components are described as wafer-thin, suitable for concealment within a standard dental cap. The specification explicitly anticipates further reduction to micro-miniature proportions through thin film circuit fabrication techniques — an early documented reference to what would later become the thin-film deposition methods central to modern MEMS and nano-scale device fabrication.
  • Body-as-circuit: The patent explicitly characterises the facial nerve system as exhibiting detection, piezoelectric qualities, as well as characteristics of capacitance, inductance and resistance, establishing the human body not merely as the target of the circuit but as a functional component within it. The nerve pathway itself serves as the return conductor.

Significance in V2K Research

Researchers including the author of BOOK 3: The Radiohead Protocol identify US 3,156,787 as a pivotal document in the technical genealogy of Voice to Skull (V2K) technology, for several reasons:

Materials Continuity

The specification of lead zirconate titanate (PZT) and barium titanate as transducer materials is not merely of historical interest. These same piezoelectric ceramic families remain the dominant materials in contemporary MEMS transducers, ultrasonic neural stimulation devices, and implantable bioelectronics. The patent's material choices reflect an engineering tradition that runs unbroken from the early 1960s to present-day neural interface research.

Thin-Film Anticipation

The patent's mention of thin film circuit fabrication techniques as a future development pathway is frequently cited by researchers as anticipating the nanoscale deposition processes — including R-PECVD (Remote Plasma-Enhanced Chemical Vapor Deposition) — that some researchers allege form the basis of hypothesised non-consensual neural device delivery in modern targeted individual accounts. See Nanotechnology, Self-Assembling Nanostructures, and Intra-Body Nano Network for related discussion.

Multiple Tissue Interface Pathways

Form 2's use of tongue contact to complete the circuit demonstrates that Puharich and Lawrence were already aware that the facial nerve system could be accessed through multiple tissue interfaces — not only through periapical dental nerve endings. Some researchers note this implies any surface of the mouth, or by extension other mucous membranes with dense cranial nerve innervation, could serve as a signal coupling interface.

Human Body Communication (HBC)

Perhaps most significantly for contemporary research, the use of the body's own nerve network as the electrical return path of the circuit constitutes an early formally documented instance of what is now termed Human Body Communication (HBC): the deliberate use of the human body as a conductive medium for data or signal transmission. HBC is today an active field of standardisation under the IEEE 802.15.6 WBAN (Wireless Body Area Network) framework. Some researchers studying Electronic Harassment and Targeted Individuals argue that the technical principles formalised in HBC standards are directly descended from the approach first described in this patent lineage.

Transition Marker

Taken together, the miniaturisation achieved, the use of commercially available solid-state components, the explicit anticipation of further size reduction, and the concealment within routine dental work represent a clear transition point from laboratory experiment to a device that could, in principle, be deployed in a non-laboratory setting without the subject's knowledge. This aspect of the patent is discussed extensively in analyses of the broader Puharich research program and its alleged connections to MK-Ultra-era programs.

Related Patents

  • Patent US2995633 — Means for Aiding Hearing (1961): The predecessor patent establishing the dormant facial hearing system as a viable signal pathway and demonstrating that RF-modulated signals can stimulate cranial nerves V and VII.
  • Patent US3267931 — Electrically Stimulated Hearing with Signal Feedback (filed 1963): The successor patent, adding a closed-loop biofeedback mechanism to the system — the signal delivered to the nerves is monitored and used to modulate the transmission in real time.
  • Patent US3563246 — Method and Apparatus for Improving Neural Performance by Electrotherapy: Amplitude-modulated wireless electrostimulation applied to neural tissue for therapeutic and performance-enhancement purposes.

See Also