Frequency response consistency calibration method and electronic device
US-2024406647-A1 · Dec 5, 2024 · US
Connection diagnostics for parallel speakers
US9119005B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9119005-B2 |
| Application number | US-201313860941-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 11, 2013 |
| Priority date | Apr 11, 2013 |
| Publication date | Aug 25, 2015 |
| Grant date | Aug 25, 2015 |
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Abstract
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Connectivity of a pair of parallel electroacoustic transducers is determined by applying a first test signal on the output line at a frequency where the impedance of the transducers in parallel is less than the impedance of the higher-frequency transducer alone, and observing whether a clip signal is received. If the clip signal is not received, an error indication is output. A second test signal is applied at a frequency where the impedance of the transducers in parallel is less than the impedance of the lower-frequency transducer alone. If the clip signal is not received, the error indication is output. A third test signal is applied at a frequency where the impedance of the transducers in parallel is higher if both transducers are operational than if the higher-frequency transducer is internally short-circuited. If the clip signal is received, a third error indication is output.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of determining connectivity of a pair of electroacoustic transducers comprising a higher-frequency transducer and a lower-frequency transducer which are connected in parallel on an output line of an amplifier, the method comprising: causing the amplifier to apply a first test signal on the output line at a first test frequency where the impedance of the two transducers in parallel is less than the impedance of the higher-frequency transducer alone,…
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Electricity · mapped topic
- H04R29/001Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9119005B2 cover?
- Connectivity of a pair of parallel electroacoustic transducers is determined by applying a first test signal on the output line at a frequency where the impedance of the transducers in parallel is less than the impedance of the higher-frequency transducer alone, and observing whether a clip signal is received. If the clip signal is not received, an error indication is output. A second test sign…
- Who is the assignee on this patent?
- Bose Corp
- What technology area does this patent fall under?
- Primary CPC classification H04R29/001. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 25 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).