Mobile information processing apparatus

• US 9,756,167 B2
• Filed: 07/14/2016
• Issued: 09/05/2017
• Est. Priority Date: 12/24/2004
• Status: Active Grant

• Current Assignee: Dap Realize Inc.
• Original Assignee: Dap Realize Inc.
• Inventors: Izutsu, Masahiro
• Primary Examiner(s): SHIN, CHRISTOPHER B
• Application Number:
  US15/210,113
• Publication Number:
  US 20160352882A1
• Time in Patent Office: 418 Days
• Field of Search: 710 62- 74, 710303, 709202-206, 725118, 701200, 4555521, 4555531, 4555541, 4555542, 4555561, 4555562, 455557
• CPC Class Codes: G06F 3/1438 using more than one graphics controller
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04M 1/0266 for a display module assembly
• CPC Class Codes: H04M 1/72409 by interfacing with external accessories hands-free H04M1/60
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces
• CPC Class Codes: H04M 1/72427 for supporting games or graphical animations
• CPC Class Codes: H04M 1/737 Characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves
• CPC Class Codes: H04M 2201/38 Displays

Abstract

A mobile information communication apparatus includes a data processing device for sending plotting command/data to a display control device that controls the pixels of a display panel belonging to the mobile information communication apparatus. An interface device is provided which receives the plotting command/data generated by the data processing device and sends, based on plotting command/data, an external display signal to the external display device. The data processing device and the interface device are configured to send, from the interface device, a higher-resolution external display signal.

Claims

1. A graphic controller installed in a mobile information communication apparatus comprising (i) a CPU, (ii) an interface means to send a display signal to a peripheral apparatus, and (iii) a display means including a display panel and a display control means, the graphic controller having the following functions:

a function to write and read bit-mapped data into/from a VRAM according to a processing result of the CPU;

a function to generate a first digital display signal and a second digital display signal for transmitting the read bit-mapped data, the first digital display signal and the second digital display signal having different intrinsic resolutions, the first digital display signal having a high intrinsic resolution, and the second digital display signal having a low intrinsic resolution; and

a function to send (i) the first digital display signal having the high intrinsic resolution to the interface means and (ii) the second digital display signal having the low intrinsic resolution to the display control means,

wherein the interface means converts the first digital display signal received from the graphic controller to a digital external display signal, and sends the digital external display signal to the peripheral apparatus, and

wherein the display control means activates each pixel of the display panel according to the second digital display signal received from the graphic controller.

2. A method performed by a graphic controller installed in a mobile information communication apparatus comprising (i) a CPU, (ii) an interface means to send a display signal to a peripheral apparatus, and (iii) a display means including a display panel and a display control means, the method comprising:

writing and reading bit-mapped data into/from a VRAM according to a processing result of the CPU;

generating a first digital display signal and a second digital display signal for transmitting the read bit-mapped data, the first digital display signal and the second digital display signal having different intrinsic resolutions, the first digital display signal having a high intrinsic resolution, and the second digital display signal having a low intrinsic resolution; and

sending the first digital display signal having the high intrinsic resolution to the interference means, and sending the second digital display signal having the low intrinsic resolution to the display control means,

wherein the interface means converts the first digital display signal received from the graphic controller to a digital external display signal, and sends the digital external display signal to the peripheral apparatus, and

wherein the display control means activates each pixel of the display panel according to the second digital display signal received from the graphic controller.