Panasonic Develops Advanced Low-range Sound Reproduction Technology for Compact Speakers.Tokyo, Japan, July 30, 2007 - (JCN JCN Japan Corporate News JCN Journal of Cognitive Neuroscience JCN Journal of Cardiovascular Nursing JCN Journal of Christian Nursing JCN Job Control Number JCN Journal of Child Neurology JCN joint communications network (US DoD) Newswire) - Panasonic, the leading brand by which Matsushita Electric Industrial Co. Ltd. is known, today announced that it has developed a patent-pending low-range sound reproduction method, "Nano Bass Exciter ex·cit·er n. 1. One that excites: an exciter of animosity. 2. An auxiliary generator used to provide field current for a larger generator or alternator. 3. ," to reproduce high fidelity high fidelity n. The electronic reproduction of sound, especially from broadcast or recorded sources, with minimal distortion. high sound for compact speakers. Panasonic's ground-breaking method is achieved by placing a porous porous /por·ous/ (por´us) penetrated by pores and open spaces. po·rous adj. 1. Full of or having pores. 2. Admitting the passage of gas or liquid through pores. carbon material within the loudspeaker loudspeaker or speaker, device used to convert electrical energy into sound. It consists essentially of a thin flexible sheet called a diaphragm that is made to vibrate by an electric signal from an amplifier. cabinet, enabling small and/or thin speakers used in a range of products such as audio-visual (AV) equipment and mobile terminals to produce the industry's highest level of rich low-range sounds*. The "Nano Bass Exciter" uses a porous carbon material with nanometer-sized minute pores that control the concentration of air molecules in the speaker. When low-range sound is reproduced, large amplitude amplitude (ăm`plĭt  d'), in physics, maximum displacement from a zero value or rest position. vibrations of the diaphragm diaphragm (dī`əfrăm'), term used to describe any of several large muscles, found in humans and other mammals, which separate two adjacent regions of the body. The most commonly known muscle of this class is the thoraco-abdominal diaphragm. momentarily increase the air
pressure within the loudspeaker cabinet. The "Nano Bass
Exciter" physically absorbs the air molecules and decreases the air
pressure, allowing the diaphragm in a compact speaker to move in the
same manner as the diaphragm in a large loudspeaker cabinet. As a
result, even compact equipment can reproduce high fidelity low-range
sound.
The "Nano Bass Exciter" achieves twice as much volume of low-range sounds as Panasonic's conventional speakers, allowing rich sound reproduction with high fidelity. The new method can reproduce the low-range sound equivalent to that produced by conventional speakers with larger cabinet volume. It also enables ultra-compact speakers used for mobile terminals to produce a sound effect closer to that of home AV equipment speakers. This development has been achieved by using two Panasonic's proprietary technologies: (1) Acoustic characteristic analysis technologies that determine the conditions of material (material, form, etc.) in order to increase the volume of fidelity of low-range sounds. (2) Speaker system configuration design technologies to fully utilize the porous carbon material to maximize the volume of low-range sounds. On small speakers, the diaphragm motion is restricted by the air pressure within the cabinet. Therefore, maintaining fidelity in reproduction of low-range sound is considered to be difficult. Attempts were made to reproduce low-range sounds in which carbon materials were placed within the loudspeaker cabinet to physically absorb air molecules. However, because it is difficult for air molecules to be absorbed by the carbon material at higher sound frequencies, applications in ultra-compact speakers for mobile terminals have shown limited effect. These technologies have therefore only been adopted for a few home AV equipment speakers. Panasonic is considering applying the new method to future product design including speakers for home AV equipment and mobile terminals. The company has 14 patents pending in Japan and 10 pending in other countries. *According to according to prep. 1. As stated or indicated by; on the authority of: according to historians. 2. In keeping with: according to instructions. 3. our data as of July 30, 2007 About Panasonic (Matsushita Electric Industrial) Best known by its Panasonic brand name, Matsushita Electric Industrial Co., Ltd. is a worldwide leader in the development and manufacture of electronic products for a wide range of consumer, business and industrial needs. Based in Osaka, Japan, the company recorded consolidated net sales Net Sales The amount a seller receives from the buyer after costs associated with the sale are deducted. Notes: This amount is calculated by subtracting the following items from gross sales: merchandise returned for credit, allowances for damaged or missing goods, freight of US$76.02 billion for the year ended March 31, 2006. The Company's shares are listed on the Tokyo, Osaka, Nagoya and New York New York, state, United States New York, Middle Atlantic state of the United States. It is bordered by Vermont, Massachusetts, Connecticut, and the Atlantic Ocean (E), New Jersey and Pennsylvania (S), Lakes Erie and Ontario and the Canadian province of (NYSE NYSE See: New York Stock Exchange :MC) stock exchanges. For more information on the company and the Panasonic brand, visit the Company's website at http://panasonic.net/. Source: Panasonic (Matsushita Electric Industrial) Contact: Akira Kadota, Panasonic International PR Tel: +81-3-3578-1237 Fax: +81-3-3436-6766 Panasonic News Bureau Tel: +81-3-3542-6205 Fax: +81-3-3542-9018 Japan Corporate News Network. All rights reserved. |
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