Bottlenecks in digital music player

Bottlenecks in digital music player



United States May 25 local time (GMT May 26) messages, digital music players is becoming a necessity in people's lives, but its battery life is really worrying. The newest player capable of storing thousands of songs, almost all of the individuals included in the collection. But even as the most popular Apple iPod and other players, several best-selling models, the life of its rechargeable battery(hp nc6120 battery, hp nc6140 battery, hp nc6200 battery) can only be sustained for about 1 year.



Player has already spent hundreds of dollars of users, often had no choice but to update the battery and 100 U.S. dollars to spend a lot of grievances. Whether in the cocktail party or networking forums are full of fans of the digital player and its many vendors complain. These indeed have been some dissatisfaction with the settlement. Such as Apple Computer since starting in November 2003 launched a 99 U.S. dollars to update the iPod battery services.



Music lovers are expensive if you want to avoid spending money, will have to take a long time to sacrifice size or features such as broadcast to achieve the objectives. NPD's market research department manager of industry analysis Ross - Rubin said: "The size of the smaller players, the same performance in other circumstances, its battery life, the more difficult it is to maintain."



popular iPod player, one of the reasons is that its product is only equal to the largest size of a deck of cards, weighs only 5.6 ounces (about 157 grams). However, the application of such a small player in the sustainable use of the battery can only be 8 hours. By contrast, Dell quite another memory, weighs 7.6 ounces player sustainable use of the battery is 20 hours, equivalent to twice the former.



Repeatedly charging the battery will shorten battery life. Other factors, including the player's LCD screen the same size and type of impact on battery life. The length of playback time format also depends on the battery. Windows Media Player files smaller than that of other popular MP3 format, the less power consumption.



Another solution to the issue of battery replacement is purchased using the flash player, flash-based players than the iPod hard drive several hundred dollars cheaper, using a one-time battery.



Or can also use the so-called better quality battery, according to market research firm NPD said Rubin, iRiver and Dell's use of the lithium polymer battery than the iPod's lithium-ion batteries are much better. Rubin said: "The lithium-polymer battery is probably the best you can find the battery. This is the first use of the iPod battery(gd761, kd476, td347)."



IRiver said that if the daily average of four hours to play, IRiver rechargeable battery can last 4-5 years. IPod's battery can only use two.



Another option is to buy the replacement of the rechargeable battery, such as California, "Milpitas laboratory to create" the battery. The company said its hard disk drives used in the rechargeable battery player sells for 49 U.S. dollars, you can continue to use 14 hours and can be easily replaced by the user himself.



56 million to develop hydrogen fuel cell



In the Evening News under the auspices of the enthusiastic, Chen Qing crown elderly "women's apartment to be the word of" the invention of the patent is finally have the place. Yesterday, the private enterprises in Changsha Electric Group Fung and Chen on the old patent cooperation agreement signed, the group will spend 56 million yuan, and to develop the old Chen, "Hydrogen fuel cells" project.



The past few days, this newspaper reported that the consecutive home crowds of making the old Chen, who arrange to receive a daily basis the development of matters relating to patent as many as dozens of passengers, Chen was once the old cold-shouldered by the people of the patent has become sought after it. Through our "matchmaking", Changsha Electric Group Fung, chairman of Japan Mr Lai, finally, in good faith, and technical strength touched Chen old, from a number of "pro-mention" those who win. After several days of talks and demonstration yesterday Mr Lai Chen personally drove to the old factory received its visit, the two sides signed a patent cooperation agreement. Under the agreement, HSBC will be put on the early development of the Group of 500,000 yuan of funds, the two sides in the cooperation within 3 months to create 3 5000-watt, "hydrogen fuel cell," a prototype for the end of December this year passed before the technical evaluation. Next year, the HSBC Group(hp nc6220 battery, hp nc6230 battery, hp nx6110 battery) will come up with projects on a total investment of 56 million yuan, the realization of large-scale production.



Yesterday, Chen told reporters old also revealed a "secret": "Hydrogen fuel cells" project maturity, it will take the lead in application to electric vehicles, energy, the time before 2008 to produce China's first "people can afford" of electric vehicles. Mr Lai said that when the first line of electric vehicles will be donated to the evening, to express his appreciation.