High-Order Directional Microphone Diaphragm
This invention consists of a miniature microphone diaphragm having a response that is highly dependent on the direction of the incident sound. A primary advantage of this invention over existing approaches is that this concept enables the fabrication of a single, miniature microphone diaphragm that achieves a second-order (or higher-order) directional response. This invention will lead to the development of highly innovative microphones that have far greater directionality, better sensitivity, wider frequency response, and lower noise than is achievable with current technology. The improvements in the technology of acoustic sensing provided by this invention will have a profound impact on a number of industries. The ability to construct very small, low-cost acoustic sensors that are highly directional will result in dramatic performance improvements in any product that deals with acoustic communication and will open doors to the creation of new, compact and low-cost devices that sense the location of sound sources.
- As indicated, design and construction of highly innovative miniature microphones that have far greater directionality, better sensitivity, wider frequency response, and lower noise
- Based on the silicon microfabrication, the microphone diaphragms can be manufactured in an appropriately cost-effective manner
- Along with producing greatly improved devices for the hearing impaired, this technology enables the development of advanced consumer products such as directional microphones for telephones, computers, portable digital devices, and surveillance systems
Binghamton University RB164