The patent's assignee is
News editors obtained the following quote from the background information supplied by the inventors: "The present invention relates to a data access method and electronics utilizing the data access method, and more particularly, to a data access method for storing data into different devices corresponding to different access paths and electronics utilizing the data access method.
"Conventionally, it is used to save one group of data in one single memory as shown in the FIG. 1, for example, saving an image frame Fr in one single memory 100. However, an apparent issue of how to select the single memory to store the group of data exists in this conventional mechanism. Take an example of electronics having both internal and external memories, the internal memory is the memory built in the electronics, which may be integrated in the same chip with other circuits. The external memory such as a memory card can be flexibly inserted in or removed from the electronics by user. Due to cost considerations, only the external memory having limited data bandwidth or low data access rate, such as an external hard drive, can be selected. On the other hand, the capacity of internal memory is also limited. In other words, under the above constraints of internal and external memories, it may be impossible to save a whole data group in the internal memory with limited capacity; otherwise, it may take too much time to access the data group while saving the whole data group in the external memory.
"Besides, using a single data path of one memory to access the data group saved in the memory usually occupies exclusively the whole bandwidth; no other data access to the same memory can take place at the same time.
"From the above it is clear that prior art still has shortcomings. In order to solve these problems, efforts have long been made in vain, while ordinary products and methods offering no appropriate structures and methods. Thus, there is a need in the industry for a novel technique that solves these problems."
As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "Hence, one of various objectives of the present invention is to provide a data access method for accessing two or more storage apparatuses with different characteristics via different access paths.
"In one embodiment of the present invention, a data access method applicable on an electronic apparatus is provided. The electronic apparatus comprises 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.
"In another embodiment of the present invention, an electronic apparatus is disclosed. The electronic apparatus comprises a first storage apparatus; a second storage apparatus, wherein access speed to the first storage apparatus is higher than 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. 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.
"Based on the embodiments discussed above, a data group could be saved into two types of storage apparatuses having different characteristics in order to avoid the conventional problems caused by selecting a single type of storage apparatus for storing the whole data group. That is, two data access paths are utilized for accessing two different types of storage apparatuses; it eliminates the conventional problem that the transmission bandwidth to single storage apparatus is occupied exclusively.
"The above description is only an outline of the technical schemes of the present invention. Preferred embodiments of the present invention are provided below in conjunction with the attached drawings to enable one with ordinary skill in the art to better understand said and other objectives, features and advantages of the present invention and to make the present invention accordingly.
BRIEF DESCRIPTION OF THE DRAWINGS
"The present invention can be more fully understood by reading the following detailed description of the preferred embodiments, with reference made to the accompanying drawings, wherein:
"FIG. 1 depicts a block diagram showing a single data group is saved in one memory in the prior art.
"FIG. 2 illustrates a block diagram of an electronic apparatus according to an embodiment of the present invention.
"FIGS. 3(a) and 3(b) show block diagrams of electronic apparatuses in accordance with an embodiment of the present invention, respectively.
"FIG. 4 depicts a diagram showing the electronic apparatus according to the present invention accessing an image frame.
"FIG. 5 illustrates a block diagram of an electronic apparatus according to another embodiment of the present invention.
"FIG. 6 shows a data access method in accordance with an embodiment of the present invention."
For additional information on this patent application, see: Tu, Ying-Chieh; Hong, Wei-Hsiang; Lin, Yu-Cheng. Data Accessing Method and Electronic Apparatus Utilizing the Data Accessing Method. Filed
Keywords for this news article include: Electronics,
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