INFORMATION DEVICE INCLUDING MAIN PROCESSING CIRCUIT, INTERFACE CIRCUIT, AND MICROCOMPUTER
First Claim
1. An information device packaged in one package, comprising:
- a main function unit including a main processing circuit for executing signal processing related to a main function in said information device and a first microcomputer for controlling said main processing circuit by executing a first firmware program; and
an interface function unit including a first interface circuit for receiving data from an exterior device located outside of said information device to provide to said main function unit, a second interface circuit for performing an authentication operation with the exterior device, a second microcomputer for controlling said first interface circuit, and a memory for storing a second firmware program for controlling said first interface circuit,wherein said second microcomputer downloads said second firmware from said memory by executing a download program, and controlling said authentication operation of said second interface circuit,wherein said interface function unit is subjected to a single-chip process separately from said main function unit,wherein said first interface circuit and said second microcomputer are connected to each other by using a parallel interface, andwherein said first interface circuit is an interface circuit conforming to HDMI (High-Definition Multimedia Interface).
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Accused Products
Abstract
An information device packaged in one package includes a main function unit and an interface function unit. The main function unit includes a main processing circuit for executing signal processing related to a main function in the information device and a first microcomputer for controlling the main processing circuit by executing a first firmware program. The interface function unit includes an interface function unit including a first interface circuit for receiving data from an exterior device located outside of the information device to provide to the main function unit, a second interface circuit for performing an authentication operation with the exterior device, a second microcomputer for controlling the first interface circuit, and a memory for storing a second firmware program for controlling the first interface circuit.
32 Citations
6 Claims
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1. An information device packaged in one package, comprising:
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a main function unit including a main processing circuit for executing signal processing related to a main function in said information device and a first microcomputer for controlling said main processing circuit by executing a first firmware program; and an interface function unit including a first interface circuit for receiving data from an exterior device located outside of said information device to provide to said main function unit, a second interface circuit for performing an authentication operation with the exterior device, a second microcomputer for controlling said first interface circuit, and a memory for storing a second firmware program for controlling said first interface circuit, wherein said second microcomputer downloads said second firmware from said memory by executing a download program, and controlling said authentication operation of said second interface circuit, wherein said interface function unit is subjected to a single-chip process separately from said main function unit, wherein said first interface circuit and said second microcomputer are connected to each other by using a parallel interface, and wherein said first interface circuit is an interface circuit conforming to HDMI (High-Definition Multimedia Interface). - View Dependent Claims (2, 3, 4, 5, 6)
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Specification