# US 2014/0195736 A1 · Data accessing method and electronic apparatus utilizing the data accessing method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0195736 A1
- Document ID: US20140195736A1
- Status: Published application
- Kind: A1
- Application number: 14/147,767
- Filed: 2014-01-06
- Published: 2014-07-10
- Earliest claimed: 2013-01-07
- Assignees: MStar Semiconductor, Inc.
- Applicants: MStar Semiconductor, Inc.
- Inventors: Ying-Chieh Tu; Wei-Hsiang Hong; Yu-Cheng Lin
- Web page: https://patentgrep.com/patent/US20140195736A1

## CPC

- G06F 3/0655: {Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices}
- G06F 3/061: {Improving I/O performance}
- G06F 3/0617: {in relation to availability}
- G06F 3/0622: {in relation to access}
- G06F 3/064: {Management of blocks}
- G06F 3/068: {Hybrid storage device}
- G06F 3/0683: {Plurality of storage devices}
- G06F 3/0688: {Non-volatile semiconductor memory arrays}
- G06F 2212/7208: Multiple device management, e.g. distributing data over multiple flash devices
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A data access method applicable on an electronic apparatus is provided. The electronic apparatus comprises a control unit, a first storage apparatus, and a second storage apparatus. The method comprising: storing a first part of data and a second part of data of a data group in the first storage apparatus and the second storage apparatus, respectively; and selectively accessing the first storage apparatus and the second storage apparatus via different data paths for the first part of data and the second part of data, wherein access speed to the first storage apparatus is different from access speed to the second storage apparatus.

## Claims

### Claim 1

A data access method applicable on an electronic apparatus comprising a first storage apparatus and a second storage apparatus, the method comprising:
storing a first part of data and a second part of data of a data group in the first storage apparatus and the second storage apparatus, respectively; and
selectively accessing the first storage apparatus and the second storage apparatus via different data paths for the first part of data and the second part of data,
wherein access speed to the first storage apparatus is different from access speed to the second storage apparatus.

### Claim 2 (depends on 1)

The data access method of claim 1, wherein the electronic apparatus further comprises at least one internal circuit, the first storage apparatus and the at least one internal circuit is integrated in a chip, the second storage apparatus is coupled to the electronic apparatus via an interface, and the second storage apparatus is removable from the interface.

### Claim 3 (depends on 1)

The data access method of claim 1, wherein a portion of the data group is classified to the first part of data and the second part of data in an alternative fashion, and the electronic apparatus accesses the first storage apparatus and the second storage apparatus in an alternative fashion.

### Claim 4 (depends on 1)

The data access method of claim 1, wherein the data group further comprises a third part of data, the second part of data is concatenated to the first part of data, and the third part of data is concatenated to the second part of data, the method further comprising:
storing the first part of data and the third part of data in one of the first and the second storage apparatus;
storing the second part of data in the other one of the first and the second storage apparatus; and
sequentially reading the first part of data, the second part of data, and the third part of data.

### Claim 5 (depends on 1)

The data access method of claim 1, wherein the data group is an image frame, the method further comprising:
storing a plurality of odd pixel rows of the image frame in one of the first and the second storage apparatus;
storing a plurality of even pixel rows of the image frame in another one of the first and the second storage apparatus; and
sequentially reading the pixel rows of the image frame.

### Claim 6

An electronic apparatus, comprising:
a first storage apparatus;
a second storage apparatus, wherein an access speed to the first storage apparatus is higher than an access speed to the second storage apparatus; and
a control unit, configured to access the first storage apparatus and the second storage apparatus via different data paths, wherein the control unit is further configured to store a first part of data and a second part of data of a data group in the first storage apparatus and the second storage apparatus, respectively, and to selectively access the first storage apparatus and the second storage apparatus via different data paths for the first part of data and the second part of data.

### Claim 7 (depends on 6)

The electronic apparatus of claim 6, wherein the electronic apparatus further comprises at least one internal circuit, the first storage apparatus and the at least one internal circuit is integrated in a chip, the second storage apparatus is coupled to the electronic apparatus via an interface, and the second storage apparatus is removable from the interface.

### Claim 8 (depends on 6)

The electronic apparatus of claim 6, wherein a portion of the data group is classified to the first part of data and the second part of data in alternative fashion, and the electronic apparatus accesses the first storage apparatus and the second storage apparatus in alternative fashion.

### Claim 9 (depends on 6)

The electronic apparatus of claim 6, wherein the data group further comprises a third part of data, the second part of data is concatenated to the first part of data, and the third part of data is concatenated to the second part of data, wherein the control unit is further configured to store the first part of data and the third part of data in one of the first and the second storage apparatus, store the second part of data in another one of the first and the second storage apparatus, and sequentially read the first part of data, the second part of data, and the third part of data.

### Claim 10 (depends on 6)

The electronic apparatus of claim 6, wherein the data group is an image frame, the control unit is further configured to store a plurality of odd pixel rows of the image frame in one of the first and the second storage apparatus, store a plurality of even pixel rows of the image frame in another one of the first and the second storage apparatus, and sequentially read the pixel rows of the image frame.