18583071. Acoustic Device simplified abstract (ALPS ALPINE CO., LTD.)
Acoustic Device
Organization Name
Inventor(s)
Acoustic Device - A simplified explanation of the abstract
This abstract first appeared for US patent application 18583071 titled 'Acoustic Device
The abstract describes a patent application for a bass-reflex speaker system that is mounted in a vehicle head restraint, utilizing ducts with a large ratio of length to cross-sectional area to enhance low-frequency sound pressure.
- The bass-reflex speaker system is housed in a head restraint in a vehicle.
- Ducts with a high length-to-area ratio are used to increase the load mass of air in the ducts.
- This design allows the resonant frequency of the speaker unit to be set lower than that of a Helmholtz resonator.
- The system emphasizes sound pressure in a low-frequency band, enhancing the listening experience.
- By emphasizing sound pressure in the lower frequency range, the system can provide a more immersive audio experience.
Potential Applications: - Automotive audio systems - Entertainment systems in vehicles - Public transportation audio systems
Problems Solved: - Enhancing low-frequency sound pressure in a vehicle environment - Providing a more immersive audio experience for passengers
Benefits: - Improved audio quality in vehicles - Enhanced listening experience for passengers - Innovative integration of audio technology in vehicle design
Commercial Applications: Title: "Revolutionizing In-Car Audio Systems: The Bass-Reflex Speaker in Head Restraint" This technology could be utilized by automotive manufacturers to enhance the audio experience in vehicles, potentially attracting customers looking for premium audio features in their vehicles.
Prior Art: Readers can explore prior art related to bass-reflex speaker systems, Helmholtz resonators, and vehicle audio systems to gain a deeper understanding of the technological landscape in this field.
Frequently Updated Research: Stay informed about the latest advancements in automotive audio technology, including developments in bass-reflex speaker systems and their applications in vehicles.
Questions about the Bass-Reflex Speaker System: 1. How does the design of the ducts in the speaker system contribute to enhancing low-frequency sound pressure? The ducts with a high length-to-area ratio increase the load mass of air, allowing the resonant frequency of the speaker unit to be set lower than that of a Helmholtz resonator, emphasizing sound pressure in the low-frequency band.
2. What are the potential implications of integrating a bass-reflex speaker system in a vehicle head restraint? The integration of this system could lead to a more immersive audio experience for passengers in vehicles, enhancing the overall entertainment and comfort features of the vehicle.
Original Abstract Submitted
With a vehicle-mounted acoustic device, a bass-reflex speaker system, composed of an enclosure, ducts, and a speaker unit, is accommodated in a head restraint. Each duct has a large ratio of the duct length to the area of the duct cross section to increase the load mass of air in the duct, so that the resonant frequency of the vibration unit in the speaker unit can be set in a frequency band lower than the resonant frequency of a Helmholtz resonator. Thus, sound pressure in a low-frequency band equal to or lower than the resonant frequency of the Helmholtz resonator can be emphasized and the emphasized sound pressure can be given to the ear.
