A second generation time-to-first-spike pixel with asynchronous self power-off

Shoushun Chen; Amine Bermak

A second generation time-to-first-spike pixel with asynchronous self power-off

Shoushun Chen^*, Amine Bermak

^*Corresponding author for this work

Hong Kong University of Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

7 Citations (Scopus)

Abstract

In this paper we propose a second generation timeto-first-spike (TFS) pixel based on an asynchronous self power-off architecture. In this architecture time-to-first spike is used to encode the photocurrent information. Once the first spike is received and read-out using an address event representation (AER), the pixel is forced into standby mode by cutting off the power supply of itself. Simulation results shows that significant reduction in leakage power is achieved which is a major concern when implementing high resolution image sensor in deep-submicron technology. Based on this proposed architecture a prototype was designed in UMC 0.18 μm technology. Each pixel include a photodiode, an event generator and hand-shaking communication protocol using 15 transistors. Each pixel occupies an area of 8.3 × 8.3μm² with a fill factor of 15%. In addition, the new generation TFS sensor features reduced depth of the arbitration tree using high-radix AER building block resulting in reduced overall delay.

Original language	English
Title of host publication	ISCAS 2006
Subtitle of host publication	2006 IEEE International Symposium on Circuits and Systems, Proceedings
Pages	2289-2292
Number of pages	4
Publication status	Published - 2006
Externally published	Yes
Event	ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems - Kos, Greece Duration: 21 May 2006 → 24 May 2006

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)	0271-4310

Conference

Conference	ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
Country/Territory	Greece
City	Kos
Period	21/05/06 → 24/05/06

Keywords

Address event representation
CMOS image sensor
Low leakage pixel
Time-to-first-spike pixel

Cite this

@inproceedings{7cfcfa4dad6e40bbb8e37f0531fe5749,

title = "A second generation time-to-first-spike pixel with asynchronous self power-off",

abstract = "In this paper we propose a second generation timeto-first-spike (TFS) pixel based on an asynchronous self power-off architecture. In this architecture time-to-first spike is used to encode the photocurrent information. Once the first spike is received and read-out using an address event representation (AER), the pixel is forced into standby mode by cutting off the power supply of itself. Simulation results shows that significant reduction in leakage power is achieved which is a major concern when implementing high resolution image sensor in deep-submicron technology. Based on this proposed architecture a prototype was designed in UMC 0.18 μm technology. Each pixel include a photodiode, an event generator and hand-shaking communication protocol using 15 transistors. Each pixel occupies an area of 8.3 × 8.3μm2 with a fill factor of 15\%. In addition, the new generation TFS sensor features reduced depth of the arbitration tree using high-radix AER building block resulting in reduced overall delay.",

keywords = "Address event representation, CMOS image sensor, Low leakage pixel, Time-to-first-spike pixel",

author = "Shoushun Chen and Amine Bermak",

year = "2006",

language = "English",

isbn = "0780393902",

series = "Proceedings - IEEE International Symposium on Circuits and Systems",

pages = "2289--2292",

booktitle = "ISCAS 2006",

note = "ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems ; Conference date: 21-05-2006 Through 24-05-2006",

}

Chen, S & Bermak, A 2006, A second generation time-to-first-spike pixel with asynchronous self power-off. in ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems, Proceedings., 1693078, Proceedings - IEEE International Symposium on Circuits and Systems, pp. 2289-2292, ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems, Kos, Greece, 21/05/06.

A second generation time-to-first-spike pixel with asynchronous self power-off. / Chen, Shoushun; Bermak, Amine.
ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems, Proceedings. 2006. p. 2289-2292 1693078 (Proceedings - IEEE International Symposium on Circuits and Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

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AU - Bermak, Amine

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N2 - In this paper we propose a second generation timeto-first-spike (TFS) pixel based on an asynchronous self power-off architecture. In this architecture time-to-first spike is used to encode the photocurrent information. Once the first spike is received and read-out using an address event representation (AER), the pixel is forced into standby mode by cutting off the power supply of itself. Simulation results shows that significant reduction in leakage power is achieved which is a major concern when implementing high resolution image sensor in deep-submicron technology. Based on this proposed architecture a prototype was designed in UMC 0.18 μm technology. Each pixel include a photodiode, an event generator and hand-shaking communication protocol using 15 transistors. Each pixel occupies an area of 8.3 × 8.3μm2 with a fill factor of 15%. In addition, the new generation TFS sensor features reduced depth of the arbitration tree using high-radix AER building block resulting in reduced overall delay.

AB - In this paper we propose a second generation timeto-first-spike (TFS) pixel based on an asynchronous self power-off architecture. In this architecture time-to-first spike is used to encode the photocurrent information. Once the first spike is received and read-out using an address event representation (AER), the pixel is forced into standby mode by cutting off the power supply of itself. Simulation results shows that significant reduction in leakage power is achieved which is a major concern when implementing high resolution image sensor in deep-submicron technology. Based on this proposed architecture a prototype was designed in UMC 0.18 μm technology. Each pixel include a photodiode, an event generator and hand-shaking communication protocol using 15 transistors. Each pixel occupies an area of 8.3 × 8.3μm2 with a fill factor of 15%. In addition, the new generation TFS sensor features reduced depth of the arbitration tree using high-radix AER building block resulting in reduced overall delay.

KW - Address event representation

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KW - Low leakage pixel

KW - Time-to-first-spike pixel

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M3 - Conference contribution

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SN - 0780393902

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T3 - Proceedings - IEEE International Symposium on Circuits and Systems

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T2 - ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems

Y2 - 21 May 2006 through 24 May 2006

ER -

A second generation time-to-first-spike pixel with asynchronous self power-off

Abstract

Publication series

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Keywords

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