# US 11,906,256 B2 · Digital recording of firearm identification

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- Number: US 11,906,256 B2
- Document ID: US11906256B2
- Status: Granted
- Kind: B2
- Application number: 17/808,024
- Filed: 2022-06-21
- Published: 2022-12-29
- Granted: 2024-02-20
- Earliest claimed: 2021-06-23
- Applicants: Darryl Satten
- Inventors: Darryl Satten
- Web page: https://patentgrep.com/patent/US11906256B2

## CPC

- F41A 17/06: Electric or electromechanical safeties (F41A17/04, F41A17/08 take precedence)
- F42B 35/00: Testing or checking of ammunition {(apparatus for measuring the energy of projectiles G01L5/14)}
- G06F 3/0604: {Improving or facilitating administration, e.g. storage management}
- G06F 3/0638: {Organizing or formatting or addressing of data}
- G06F 3/0655: {Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices}
- G06F 3/0673: {Single storage device}
- G06F 3/0679: {Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]}
- F41A 5/26: Arrangements or systems for bleeding the gas from the barrel (F41A5/20 - F41A5/24 take precedence)
- F42B 5/02: Cartridges, i.e. cases with charge and missile
- F41A: FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F42B: EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION (explosive compositions C06B; fuzes F42C; blasting F42D)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

Digital Recording is provided using SWO technology wherein a microprocessor is located in a pistol and a single wire EEPROM is mounted on each cartridge used by the pistol. Power and data can be sent over a single wire from the microprocessor to the single wire EEPROM to communicate information about the pistol, such as the serial number, make, and model of the firearm.

## Claims

### Claim 1

A combination pistol and cartridge comprising:
a Single Wire Output (SWO) capable microprocessor located in the pistol;
a single wire EEPROM; and
wherein a single wire interface is provided when a part of the pistol contacts the single wire EEPROM located on the cartridge.

### Claim 2 (depends on 1)

The combination firearm and cartridge of claim 1, wherein the part of the pistol that contacts the single wire EEPROM is an extractor.

### Claim 3 (depends on 1)

The combination firearm and cartridge of claim 1, wherein the cartridge is electrically grounded via contact with a metal barrel and slide.

### Claim 4 (depends on 1)

The combination firearm and cartridge of claim 1, wherein information is written via the single wire interface when the extractor of the pistol contacts the single wire EEPROM.

### Claim 5 (depends on 4)

The combination firearm and cartridge of claim 4, wherein the information comprises a serial number of the firearm.

### Claim 6

A method for manufacturing cartridges comprising:
placing a substrate containing a single wire EEPROM onto a cartridge.

### Claim 7 (depends on 6)

The method of claim 6, further comprising placing a second substrate containing a single wire EEPROM onto a second cartridge.

### Claim 8

A cartridge comprising:
a bullet attached to a shell having an interior cavity container gunpowder; and
a substrate containing a single wire EEPROM mounted to an exterior of the shell.

### Claim 9

A method of electronically microstamping a shell of a cartridge comprising:
placing a SWO capable microprocessor in a frame or in a grip of a pistol;
placing a substrate containing a single wire EEPROM onto the shell of the cartridge;
forming a single wire interface between the SWO capable microprocessor and the cartridge; and
communicating information from the SWO capable microprocessor to the single wire EEPROM.

### Claim 10 (depends on 9)

The method of claim 9, the information transferred to the EEPROM comprises a serial number of the pistol.

### Claim 11 (depends on 10)

The method of claim 10, wherein the information further comprises a make and a model of the pistol.

### Claim 12 (depends on 10)

The method of claim 10, further comprising downloading additional data to the EEPROM.

### Claim 13 (depends on 12)

The method of claim 12, wherein the additional data comprise at least one of geographical location, time, and date that the cartridge is discharged.