US 8610573

Here is a concise summary of US patent 8610573:

US Patent 8610573: Radio frequency module and methods of transmitting/receiving data

• Title: Radio frequency module and methods of transmitting/receiving data
• Assignee: Modulus Systems LLC, RF Digital Corp, Rochester Sensors LLC
• Inventor: Armen E. Kazanchian
• Filing Date: September 11, 2009 (Application number US12/558,484)
• Issue Date: December 17, 2013 (Publication number US8610573B2)
• Abstract: The patent describes a wireless module that users can configure to operate as a transmitter, receiver, transceiver, or repeater in different modes. It also details methods for transmitting and receiving data that significantly reduce or eliminate interference from competing frequency bands, including Wi-Fi systems. Furthermore, it outlines a method for transmitting data with high certainty without needing acknowledgement receipts, negotiation, or hand-shaking from downstream transceivers, receivers, or repeaters.

Plain-Language Overview of Independent Claims:

• Independent Claim 1 (Radio Frequency Module): This claim describes a physical radio frequency (RF) module. It consists of a printed circuit board (PCB) with a transceiver assembly mounted on its first surface. The transceiver assembly includes a transceiver and a matching/filtering network made of several passive electrical components connected in series and arranged linearly. A key feature is a ground plane on the PCB surrounding the transceiver assembly and an RF shield electrically connected to the ground plane, covering the transceiver assembly. Uniquely, a chip antenna is positioned on the PCB's first surface, outside the shield, and runs generally parallel to the matching/filtering network. A radio feed point connects the chip antenna to the end of the matching/filtering network, with the antenna, matching/filtering network, and feed point collectively forming a U-shaped configuration.
• Independent Claim 11 (Method of Wirelessly Transmitting Data): This claim outlines a method for wirelessly transmitting data, particularly for repeater functionality. It involves transmitting a data packet from a first location on at least one frequency. This data packet includes a 'repeat signal' that has an initial value for the first transmission. When this data packet is received at a second location (e.g., a repeater), the system checks if the repeat signal is at its initialized value. If it is, the data packet is then transmitted to a third location with the repeat signal modified (e.g., a "repeat bit" is changed from 0 to 1). If the received data packet's repeat signal is not at the initialized value (meaning it has already been repeated), that packet is discarded to prevent redundant re-transmissions.

Litigation Status:
US Patent 8610573 is currently active and is subject to multiple litigations. As of the current date, several cases have been filed in the Eastern District of Texas and the Western District of Texas. For instance, cases with dockets such as 2:26-cv-00330, 2:26-cv-00328, 2:26-cv-00333, 2:26-cv-00331, 2:26-cv-00329, and 2:26-cv-00332 were filed in the Texas Eastern District Court in 2026. There is no authoritative information from the CAFC 2026 dockets indicating that any of these specific district court cases involving US8610573 have proceeded to the Court of Appeals for the Federal Circuit as of April 26, 2026.