Radio-frequency identification (rfid) capacitance liquid measurement tag system
US-2024311609-A1 · Sep 19, 2024 · US
Semiconductor device and power receiving device
US9022293B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9022293-B2 |
| Application number | US-89600607-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 29, 2007 |
| Priority date | Aug 31, 2006 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
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Abstract
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An object is to provide a semiconductor device that is capable of wireless communication, such as an RFID tag, which can transmit and receive individual information without checking remaining capacity of a battery or changing batteries due to deterioration with time in the battery for a drive power supply voltage, and maintain a favorable a transmission/reception state even when electric power of an electromagnetic wave from a reader/writer is not sufficient. The semiconductor device includes a signal processing circuit, a first antenna circuit connected to the signal processing circuit, an antenna circuit group, a rectifier circuit group and a battery connected to the signal processing circuit. The first antenna circuit transmits and receives a signal for transmitting data stored in the signal processing circuit and drives a power supply circuit, and each antenna circuit of the antenna circuit group receives a signal for charging the battery and includes an antenna which has a different corresponding frequency.
First claim
Opening claim text (preview).
What is claimed is: 1. A semiconductor device comprising: a first antenna circuit and a first chip including a signal processing circuit over a first substrate; and a second antenna circuit, a third antenna circuit, a battery, and a second chip including a rectifier circuit and a charging circuit over a second substrate, wherein the first substrate and the second substrate are spaced apart from each other, wherein the first antenna circuit and the first chip are interposed b…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9022293B2 cover?
- An object is to provide a semiconductor device that is capable of wireless communication, such as an RFID tag, which can transmit and receive individual information without checking remaining capacity of a battery or changing batteries due to deterioration with time in the battery for a drive power supply voltage, and maintain a favorable a transmission/reception state even when electric power …
- Who is the assignee on this patent?
- Osada Takeshi, Tamura Hikaru, Semiconductor Energy Lab
- What technology area does this patent fall under?
- Primary CPC classification G06K19/0723. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 05 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).