Browse Prior Art Database

Method for circuitless IC communication on board

IP.com Disclosure Number: IPCOM000030310D
Publication Date: 2004-Aug-05
Document File: 4 page(s) / 48K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for circuitless integrated circuit (IC) communication on board. Benefits include improved functionality, improved performance, and improved process simplification.

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Method for circuitless IC communication on board

Disclosed is a method for circuitless integrated circuit (IC) communication on board. Benefits include improved functionality, improved performance, and improved process simplification.

Background

              Typically in mother boards, the information flow between the integrated circuits is through etched channels/wires on the printed circuits of the board. They can be multilayered and complicated, which contributes to design complexity, increased/constrained form factors, and  increased manufacture/fabrication costs.

General description

              The disclosed method is circuitless communication between ICs for control and data flow. The method results in ease of motherboard design, reduced form factors, and simplification of the fabrication/manufacturing process.

              The key elements of the method include:

•             Establishing the communication with its peer ICs during system startup and identification using a motherboard ID and an IC ID

•             Decoding and convert radio frequency (RF) signals into corresponding IC commands/data and vice versa

•             Controlling the antennas as part of power management for turning the antennas off and on during various low-power system states

•             Processing header information to identify the source IC and fill the IDs in the header information while transmitting

Advantages

              The disclosed method provides advantages, including:

•             Improved functionality due to reducing the motherboard form factor

•             Improved functionality due to enabling the hardware IC interface to change easily

•             Improved functionality due to enabling RF communication between ICs

•             Improved performance due to improving the communication between ICs on the motherboard and on interface cards

•             Improved process simplification due to improved ease of motherboard design

•             Improved process simplification due to providing the ICs with electrical signals through physical circuits without having to incorporate any of the physical circuit connections

•             Improved process simplification due to replacing various busses with radio communication

Detailed description

      The disclosed method is circuitless communication between ICs for control and data flow. All ICs present on the motherboard transmit and receive signals for control and data, using RF communication. Each IC is designed with transmitters and receivers to communicate with other ICs. By employing RF communication between ICs, data can be transmitted and received to/from the counter part IC without any physical circuit connection between them (see Figure 1). This paradigm can be applied to any board that houses multiple ICs to achieve functionality and overcome the form factor constraints posed by the on-board circuits. Additionally, the method enables mechanical designs with devices of shapes/sizes that are esthetically...