1. Field of the Invention
The present invention relates to a motherboard that has a selective audio connection jack layout.
2. General Background
In many contemporary computer systems, a multichannel sound effect is provided as a standard feature. Support for output of a 5.1 soundtrack format has been widely used. The 5.1 soundtrack format includes six channels: a left channel, a right channel, a center channel, a left surround channel, a right surround channel, and a low-frequency-effect channel (0.1 channel). A coder/decoder (CODEC), such as ALC658 and ALC655 which comply with AC97 edition 2.3, outputs three groups of signals to a three-hole audio connector. The three-hole audio connector includes three audio connectors: LINE-OUT, LINE-IN, and MIC-IN.
In keeping with market trends toward upgrading of sound effect features, a 7.1 soundtrack format is preferable over the 5.1 soundtrack format. The 7.1 soundtrack format uses the six channels of the 5.1 soundtrack format, and further includes a rear left surround channel and a rear right surround channel. The 7.1 soundtrack format needs a CODEC that supports it, in order to produce six groups of signals output to a six-hole audio connector. CODECs that support the 7.1 soundtrack format include ALC850 which complies with AC97 edition 2.3, and ALC880 which adopts the technology of Intel Corporation's High Definition Audio (HD Audio).
Referring to
Referring to
Hence, for a computer system to provide a choice of the 5.1 soundtrack format and the 7.1 soundtrack format, motherboards of two different specifications have to be installed in the computer system. That is, the motherboard 200 for connecting the audio connector that supports the 5.1 soundtrack format is needed, and the motherboard 300 for connecting the audio connector that supports the 7.1 soundtrack format is also needed. As a result, production costs are unduly high.
If both the jack layouts 52, 82 are defined in the same motherboard 200 or 300, the total expanse of the audio connection area 50 or 80 must be increased. Hence, the specification of the motherboard 200 or 300 must be changed. Even worse, the specification of the associated computer enclosure may also have to be changed as a result.
What is needed is a motherboard having an audio connection jack layout that is capable of selectively connecting with different audio connectors to respectively support different sound effects.
A motherboard in accordance with a preferred embodiment includes an audio connection area defining a first jack layout. The first jack layout integrates second and third jack layouts for two audio connectors of different specifications, so that jacks of the first jack layout can selectively connect with the audio connectors. At least one of the jacks of the first jack layout is common to both the second jack layout and the third jack layout. The motherboard further includes an electrical connection module attached thereto, and coder/decoder (CODEC). The electrical connection module electrically connects the jacks of the first jack layout to the CODEC.
Other objects, advantages and novel features will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
Referring to
The motherboard 100 includes an audio connection area 10, and a screw hole 40 located at a left side of the audio connection area 10 for mounting the motherboard 100 to a computer enclosure. An electrical connection module 20 is connected to the jack layout 12.
Referring to
The present invention addresses the characteristics of both the three-hole audio connector and the six-hole audio connector. The jack layout for the three-hole audio connector is arranged integrally with the jack layout for the six-hole audio connector. This enables manufacturers or users to selectively connect two different audio connectors according to individual requirements. In particular, manufacturers need only produce one type of motherboard to support both the 5.1 soundtrack format and the 7.1 soundtrack format. Accordingly, production costs may be greatly reduced.
It is believed that the present embodiment and its advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the example hereinbefore described merely being a preferred or exemplary embodiment.
Number | Date | Country | Kind |
---|---|---|---|
2004 2 0071677 | Jul 2004 | CN | national |
Number | Name | Date | Kind |
---|---|---|---|
5064378 | Olson et al. | Nov 1991 | A |
5751557 | Silva | May 1998 | A |
5788511 | Burnworth et al. | Aug 1998 | A |
6438637 | Chen | Aug 2002 | B1 |
6612850 | Dai | Sep 2003 | B1 |
6761584 | Li | Jul 2004 | B1 |
20040037426 | Chu et al. | Feb 2004 | A1 |
Number | Date | Country | |
---|---|---|---|
20060009060 A1 | Jan 2006 | US |