US 7844882

Summary of US Patent 7844882

Title: Resource sharing in a telecommunications environment

Assignee: TQ Delta LLC (Current Assignee as of 2026-05-29, originally Aware Inc.)

Inventors: Marcos C. Tzannes, Michael Lund

Filing Date: 2010-04-16

Issue Date: 2010-11-30

Abstract: A transceiver is designed to share memory and processing power among multiple transmitter and/or receiver latency paths in a communication system that supports diverse applications. For instance, the transceiver's transmitter and/or receiver latency paths can share an interleaver/deinterleaver memory. The allocation of this shared memory can be determined by parameters such as data rate, latency, bit error rate (BER), or impulse noise protection requirements of the application data being transmitted over each latency path.

Plain-Language Overview of Independent Claims:

• Claim 1 (System for allocating shared memory - interleaver focused): This claim describes a system within a transceiver that manages shared memory for interleavers and deinterleavers.

  1. The transceiver transmits or receives a message during initialization, indicating the maximum amount of memory (in bytes) available for allocation to an interleaver.
  2. The transceiver then determines how much memory the interleaver needs to interleave Reed-Solomon (RS) coded data bytes within the shared memory.
  3. It allocates a portion of the shared memory to the interleaver for RS coded data at a first data rate, ensuring this allocation doesn't exceed the communicated maximum.
  4. Concurrently, it allocates another portion of the shared memory to a deinterleaver for RS coded data received at a second data rate.
  5. Both the interleaving and deinterleaving processes utilize their allocated portions of the shared memory simultaneously.

• Claim 5 (System for allocating shared memory - deinterleaver focused): This claim is similar to Claim 1 but inverts the primary focus between interleaver and deinterleaver.

  1. The transceiver transmits or receives a message during initialization, specifying the maximum amount of memory (in bytes) available for allocation to a deinterleaver.
  2. The transceiver determines the memory required by the deinterleaver to deinterleave RS coded data bytes within the shared memory.
  3. It allocates a portion of the shared memory to the deinterleaver for RS coded data received at a first data rate, not exceeding the specified maximum.
  4. Concurrently, it allocates another portion of the shared memory to an interleaver for RS coded data to be transmitted at a second data rate.
  5. Both the deinterleaving and interleaving processes utilize their allocated portions of the shared memory simultaneously.

• Claim 9 (System that allocates shared memory - interleaver focused, apparatus form): This claim presents the same inventive concept as Claim 1, but is phrased as a "system that allocates shared memory" comprising a "transceiver that performs" the recited steps. It covers:

  1. Transmitting or receiving a message during initialization specifying a maximum number of bytes of memory available for an interleaver.
  2. Determining the memory required by the interleaver for RS coded data within shared memory.
  3. Allocating a first number of bytes of shared memory to the interleaver for RS coded data transmission at a first data rate, not exceeding the specified maximum.
  4. Allocating a second number of bytes of shared memory to a deinterleaver for RS coded data reception at a second data rate.
  5. Simultaneously interleaving and deinterleaving using their respective allocated shared memory portions.

• Claim 13 (System that allocates shared memory - deinterleaver focused, apparatus form): This claim is the apparatus equivalent of Claim 5, describing a "system that allocates shared memory" comprising a "transceiver that performs" the deinterleaver-focused steps:

  1. Transmitting or receiving a message during initialization specifying a maximum number of bytes of memory available for a deinterleaver.
  2. Determining the memory required by the deinterleaver for RS coded data within shared memory.
  3. Allocating a first number of bytes of shared memory to the deinterleaver for RS coded data reception at a first data rate, not exceeding the specified maximum.
  4. Allocating a second number of bytes of shared memory to an interleaver for RS coded data transmission at a second data rate.
  5. Simultaneously deinterleaving and interleaving using their respective allocated shared memory portions.

There is no definitive information found in CAFC 2026 dockets specifically for US patent 7844882 in the provided search results. The general search for CAFC dockets for 2026 returned a list of various patent infringement cases, but none explicitly mentioning this patent number.