Patent No. US10121172 (titled "Parking lot monitoring system") on Mar 15, 2014. The application was issued on Nov 6, 2018.
'172 is related to the field of parking management systems, specifically those used in parking lots and ramps. Traditional parking systems often rely on numbered spaces, manual ticket systems, and human attendants for monitoring and enforcement. These systems can be inconvenient for users, costly to operate, and prone to revenue loss due to uncollected violations. The patent addresses the need for an automated, efficient, and cost-effective solution for managing parking facilities.
The underlying idea behind '172 is to automate parking management by using image recognition to identify vehicles entering and exiting a parking area, and then comparing the time spent in the area to payments made. This allows for unattended operation, automatic violation detection, and potentially increased revenue capture. The system aims to eliminate the need for physical meters, attendants, and manual enforcement.
The claims of '172 focus on a parking lot management system that includes a kiosk and a lot camera. The kiosk has a processor, memory, network interface, graphical user interface, camera, microphone, speaker, and payment acceptor. The lot camera captures images of vehicles entering the lot, and the kiosk processor detects the vehicle, captures its identification, transmits it to a remote computer, times a grace period, receives payment, determines violations based on time, and transmits violation notices.
In practice, the system works by capturing an image of the vehicle's license plate upon entry to the parking lot. This image is processed to extract the license plate number, which is then associated with the time of entry. The driver then interacts with the kiosk to select a parking duration and make a payment. Upon exiting the lot, the system again captures the license plate and compares the time spent in the lot to the paid duration. If a violation is detected, a notice is sent to the vehicle owner.
This system differentiates itself from prior approaches by automating the entire parking management process. Instead of relying on manual ticket systems or attendants, the system uses license plate recognition (LPR) and networked kiosks to track vehicles, process payments, and enforce parking regulations. This automation reduces operational costs, minimizes revenue loss, and provides a more convenient experience for users. The system can also integrate with law enforcement databases to identify stolen vehicles or vehicles associated with persons of interest.
In the early 2010s when ’172 was filed, parking facility management was typically implemented using physical infrastructure such as gated entries, ticket-dispensing kiosks, or numbered spaces requiring manual payment correlation. At a time when enforcement commonly relied on human attendants to physically inspect vehicles for paper permits or dashboard receipts, the integration of automated monitoring was often limited by the need for local hardware to process high-resolution image data. Software constraints made the real-time synchronization of entry/exit imagery with remote databases non-trivial, as systems frequently operated as standalone units rather than fully integrated, networked nodes capable of automated violation processing without on-site personnel.
The examiner allowed the patent because the prior art did not demonstrate a comprehensive parking management system that combines several specific automated steps. Specifically, the approved claims involve a system that uses cameras to capture vehicle identities at both entry and exit, manages a grace period that stops only upon payment at a kiosk, and automatically identifies violations if a vehicle stays past its paid time or fails to pay before the grace period ends. Furthermore, the examiner noted that the prior art lacked the specific combination of these tracking features with a kiosk that receives updated parking rate parameters from a remote computer system to manage the lot autonomously.
This patent includes 20 claims, with claims 1, 12, and 18 being independent. The independent claims are directed to a parking lot management system utilizing a kiosk and cameras, and methods for monitoring and managing parking using image data and violation detection. The dependent claims generally elaborate on and refine the specifics of the system and methods described in the independent claims, adding features and functionalities.
Definitions of key terms used in the patent claims.
US Latest litigation cases involving this patent.

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Get instant alerts for new documents