Open earphone
US-2024422466-A1 · Dec 19, 2024 · US
Speaker, speaker system, stereo speaker system, and on-vehicle stereo speaker system
US2020322717A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020322717-A1 |
| Application number | US-202016906478-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 19, 2020 |
| Priority date | Dec 28, 2017 |
| Publication date | Oct 8, 2020 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A speaker includes a vibrating body having an annular valley portion recessed rearward and a diffuser having an annular or arcuate base part, which is positioned so that an end of the base part on the side of the vibrating body is opposed to the valley portion. The base part is provided, at the end on the side of the vibrating body, with one or more recessed parts from which distance to the vibrating body is larger than a distance of the other portion of the end to the vibrating body , each of the recessed parts being formed in any one of a sine-wave shape, a triangular-wave shape and an arc shape.
First claim
Opening claim text (preview).
What is claimed is: 1 . A speaker, comprising: a vibrating body having an annular valley portion recessed rearward; and a diffuser having an annular or arcuate base part, the diffuser being positioned so that an end of the base part on the side of the vibrating body is opposed to the valley portion, wherein the base part is provided, at the end on the side of the vibrating body, with one or more first recessed parts from which distance to the vibrating body is larger than a distance of the other portion of the end to the vibrating body, each of the first recessed parts being formed in any one of a sine-wave shape, a triangular-wave shape and an arc shape. 2 . The speaker of claim 1 , wherein the base part is provided, at an end thereof in a sound emission direction, with one or more second recessed parts, each of the second recessed parts being formed in any one of a sine-wave shape, a triangular-wave shape and an arc shape. 3 . A speaker system, comprising: a speaker comprising a vibrating body having an annular valley portion recessed rearward, a diffuser having an annular or arcuate base part, the diffuser being positioned so that an end of the base part on the side of the vibrating body is opposed to the valley portion, and the base part provided, at the end on the side of the vibrating body, with one or more first recessed parts from which distance to the vibrating body is larger than a distance of the other portion of the end to the vibrating body, each of the first recessed parts being formed in any one of a sine-wave shape, a triangular-wave shape and an arc shape; and an enclosure on which the speaker is mounted, wherein in a usage posture of the speaker system, one of the first recessed parts is located above an axis of the diffuser.
Assignees
Inventors
Classifications
for obtaining desired frequency characteristic only {(circuit for combining transducers having different responses H04R3/00; for hearing aids H04R25/407)} · CPC title
- H04R1/345Primary
for loudspeakers · CPC title
Acoustic transducers and sound field adaptation in vehicles · CPC title
Casings; Cabinets {; Supports therefor;} Mountings therein (H04R1/28 takes precedence {; attachments for microphones H04R1/08; mounting of transducers in earpieces H04R1/1075}) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2020322717A1 cover?
- A speaker includes a vibrating body having an annular valley portion recessed rearward and a diffuser having an annular or arcuate base part, which is positioned so that an end of the base part on the side of the vibrating body is opposed to the valley portion. The base part is provided, at the end on the side of the vibrating body, with one or more recessed parts from which distance to the vib…
- Who is the assignee on this patent?
- Jvckenwood Corp
- What technology area does this patent fall under?
- Primary CPC classification H04R1/345. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 08 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).