Pub Date : 1996-04-30DOI: 10.1109/ELECTR.1996.501211
F. Cohen
This paper discusses a case study demonstrating the benefits of using the services of a consultant to save time and money in implementing the conversion of an instrument using an LCD display to one using a TFEL (thin-film electroluminescent panel).
{"title":"Consulting case study LCD to TFEL video adapter","authors":"F. Cohen","doi":"10.1109/ELECTR.1996.501211","DOIUrl":"https://doi.org/10.1109/ELECTR.1996.501211","url":null,"abstract":"This paper discusses a case study demonstrating the benefits of using the services of a consultant to save time and money in implementing the conversion of an instrument using an LCD display to one using a TFEL (thin-film electroluminescent panel).","PeriodicalId":119154,"journal":{"name":"Professional Program Proceedings. ELECTRO '96","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123420406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-30DOI: 10.1109/ELECTR.1996.501226
J. M. Kroll, N. Phamdo
A new approach to the problem of bandwidth efficient coding for transmission over the Rayleigh fading channel is considered. The proposed scheme is based on the idea of trellis coded modulation, but supports the re-transmission of 50% of the sources information. This re-transmission of data provides an additional level of time diversity, and allows for the identification of a new distortion criterion which may be used along with the squared Euclidean distance, to find the maximum likelihood path through the trellis. This new approach is developed utilizing estate trellis codes, along with two and four dimensional constellations, to support an information throughput of 2 bits/T. We will work through the design considerations applicable to this scheme, and provide performance comparisons between the proposed system, and TCM systems of comparable complexity. This new scheme achieves significant coding gains for bit error rates of practical interest. However, its complexity is about twice that of ordinary TCM.
{"title":"Bit repetitive trellis coded modulation for the Rayleigh fading channel","authors":"J. M. Kroll, N. Phamdo","doi":"10.1109/ELECTR.1996.501226","DOIUrl":"https://doi.org/10.1109/ELECTR.1996.501226","url":null,"abstract":"A new approach to the problem of bandwidth efficient coding for transmission over the Rayleigh fading channel is considered. The proposed scheme is based on the idea of trellis coded modulation, but supports the re-transmission of 50% of the sources information. This re-transmission of data provides an additional level of time diversity, and allows for the identification of a new distortion criterion which may be used along with the squared Euclidean distance, to find the maximum likelihood path through the trellis. This new approach is developed utilizing estate trellis codes, along with two and four dimensional constellations, to support an information throughput of 2 bits/T. We will work through the design considerations applicable to this scheme, and provide performance comparisons between the proposed system, and TCM systems of comparable complexity. This new scheme achieves significant coding gains for bit error rates of practical interest. However, its complexity is about twice that of ordinary TCM.","PeriodicalId":119154,"journal":{"name":"Professional Program Proceedings. ELECTRO '96","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125298874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-30DOI: 10.1109/ELECTR.1996.501246
S. Senator
This device will consist of two separate packages connected to each other by a cable and to the vehicles power supply (battery). One package is to be located in the passenger compartment in view of the driver. The other is to be mounted on the lower rear of the car for an unobstructed view to the rear. They are separate units with a cable that is not attached to the electronic units until after installation. Environmentally the electronics will see a large range of temperature and humidity as well as shock and vibration. The outside package must also withstand direct water and dirt from almost all angles as well as direct shock. The cable must also be able to withstand some abrasion due to constant vibration. The interior package must be mounted in view of the driver but not block the view. In addition it must be visually pleasing, must be able to mount on various types of surface materials and on anything from horizontal to vertical surfaces. The cable to the dash unit must be able to be routed either through a hole in the dash or under molding with minimum exposure. Using these general criteria a preliminary set of drawings was prepared on a CAD system and sent via E mail to the other engineering groups for comments. When the comments were received the drawings were revised and awaited the final design of the circuit boards as well as the final hardware choices. At this point final drawings were made and sent to the shop for prototypes.
{"title":"Mechanical design of alarm system for vehicles","authors":"S. Senator","doi":"10.1109/ELECTR.1996.501246","DOIUrl":"https://doi.org/10.1109/ELECTR.1996.501246","url":null,"abstract":"This device will consist of two separate packages connected to each other by a cable and to the vehicles power supply (battery). One package is to be located in the passenger compartment in view of the driver. The other is to be mounted on the lower rear of the car for an unobstructed view to the rear. They are separate units with a cable that is not attached to the electronic units until after installation. Environmentally the electronics will see a large range of temperature and humidity as well as shock and vibration. The outside package must also withstand direct water and dirt from almost all angles as well as direct shock. The cable must also be able to withstand some abrasion due to constant vibration. The interior package must be mounted in view of the driver but not block the view. In addition it must be visually pleasing, must be able to mount on various types of surface materials and on anything from horizontal to vertical surfaces. The cable to the dash unit must be able to be routed either through a hole in the dash or under molding with minimum exposure. Using these general criteria a preliminary set of drawings was prepared on a CAD system and sent via E mail to the other engineering groups for comments. When the comments were received the drawings were revised and awaited the final design of the circuit boards as well as the final hardware choices. At this point final drawings were made and sent to the shop for prototypes.","PeriodicalId":119154,"journal":{"name":"Professional Program Proceedings. ELECTRO '96","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132884667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-30DOI: 10.1109/ELECTR.1996.501241
C. W. Olson
This project was inspired by the need for new and better techniques for the diagnosis of patients with the potential for heart failure due to ventricular arrhythmias. This type of fatal accident is accountable for 300,000 deaths a year in this country alone. I met with a number of Doctors and Research Engineers to explore the approaches to the development of new techniques to meet this critical requirement. Since there is a minimum of dollars available to support this research, it was imperative to come up with a low cost approach. The tradeoffs were: (1) Modify available equipment. (2) Design new equipment in house. (3) Use a consultant to minimize cost and time. These alternative approaches were compared in detail to find the most cost effective approach.
{"title":"Project: electro-cardiographic data collection system","authors":"C. W. Olson","doi":"10.1109/ELECTR.1996.501241","DOIUrl":"https://doi.org/10.1109/ELECTR.1996.501241","url":null,"abstract":"This project was inspired by the need for new and better techniques for the diagnosis of patients with the potential for heart failure due to ventricular arrhythmias. This type of fatal accident is accountable for 300,000 deaths a year in this country alone. I met with a number of Doctors and Research Engineers to explore the approaches to the development of new techniques to meet this critical requirement. Since there is a minimum of dollars available to support this research, it was imperative to come up with a low cost approach. The tradeoffs were: (1) Modify available equipment. (2) Design new equipment in house. (3) Use a consultant to minimize cost and time. These alternative approaches were compared in detail to find the most cost effective approach.","PeriodicalId":119154,"journal":{"name":"Professional Program Proceedings. ELECTRO '96","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116092322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-30DOI: 10.1109/ELECTR.1996.501250
E. Tiedemann
A code division multiple access (CDMA) standard for personal communications systems (PCS), ANSI J-STD-008, was completed in the winter of 1995. The PCS air interface standard is based upon the cellular TIA/EIA/IS-95-A standard. This paper summarizes the standards that have been developed for the CDMA system, describes the new capabilities that were added to ANSI J-STD-008, and describes new capabilities being developed for CDMA cellular and PCS systems.
用于个人通信系统(PCS)的码分多址(CDMA)标准ANSI J-STD-008于1995年冬季完成。PCS空中接口标准基于蜂窝TIA/EIA/ is -95- a标准。本文总结了为CDMA系统开发的标准，描述了ANSI J-STD-008中增加的新功能，并描述了为CDMA蜂窝和PCS系统开发的新功能。
{"title":"An overview of the CDMA PCS system","authors":"E. Tiedemann","doi":"10.1109/ELECTR.1996.501250","DOIUrl":"https://doi.org/10.1109/ELECTR.1996.501250","url":null,"abstract":"A code division multiple access (CDMA) standard for personal communications systems (PCS), ANSI J-STD-008, was completed in the winter of 1995. The PCS air interface standard is based upon the cellular TIA/EIA/IS-95-A standard. This paper summarizes the standards that have been developed for the CDMA system, describes the new capabilities that were added to ANSI J-STD-008, and describes new capabilities being developed for CDMA cellular and PCS systems.","PeriodicalId":119154,"journal":{"name":"Professional Program Proceedings. ELECTRO '96","volume":"165 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124614881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-30DOI: 10.1109/ELECTR.1996.501235
J.L. Merenda, J. Pierro, R. Clouse, J. Gunther, C. Fenniman
High performance full duplex 1.4 to 2.8 GHz radios for wireless local loop telephony application have been developed and are described. The radios are designed to handle both QPSK modulation and spectrally efficient quadrature amplitude modulation (QAM) at a bit error rate of 1E-06. The radios are a critical component in a very sophisticated FDMA system that is currently installed and operational in several countries throughout the world. The system offers copper quality voice service to subscribers and is capable of supporting advanced digital services such as ISDN. The radios are designed to transmit over distances as great as 50 km. The base station radio achieves a nominal output power of approximately 1 Watt. The remote station radio located at the subscriber's residence achieves a nominal output power of approximately 0.5 Watts. The transmitter amplifiers in both the base and remote radios are operated at approximately 5 dB of cutback to preserve linearity which is especially critical in the QAM mode. The power managed system requires 60 dB of ALC range.
{"title":"Low BER radio design for wireless local loop applications","authors":"J.L. Merenda, J. Pierro, R. Clouse, J. Gunther, C. Fenniman","doi":"10.1109/ELECTR.1996.501235","DOIUrl":"https://doi.org/10.1109/ELECTR.1996.501235","url":null,"abstract":"High performance full duplex 1.4 to 2.8 GHz radios for wireless local loop telephony application have been developed and are described. The radios are designed to handle both QPSK modulation and spectrally efficient quadrature amplitude modulation (QAM) at a bit error rate of 1E-06. The radios are a critical component in a very sophisticated FDMA system that is currently installed and operational in several countries throughout the world. The system offers copper quality voice service to subscribers and is capable of supporting advanced digital services such as ISDN. The radios are designed to transmit over distances as great as 50 km. The base station radio achieves a nominal output power of approximately 1 Watt. The remote station radio located at the subscriber's residence achieves a nominal output power of approximately 0.5 Watts. The transmitter amplifiers in both the base and remote radios are operated at approximately 5 dB of cutback to preserve linearity which is especially critical in the QAM mode. The power managed system requires 60 dB of ALC range.","PeriodicalId":119154,"journal":{"name":"Professional Program Proceedings. ELECTRO '96","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127278763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-30DOI: 10.1109/ELECTR.1996.501237
S. G. Morton
Oxford Computer's A236 parallel digital signal processor chip is flexible, fully programmable and designed to compactly and inexpensively provide live video capture, processing and display. The use of single-chip, parallel processing with integrated data and instruction caches, and an inexpensive, high performance memory system, provide high performance at low cost. An extended, single-instruction multiple-data (SIMD) architecture with one, 24-bit scalar processor and four, 16-bit vector processors, is used. Five instructions are issued each clock cycle with a 40 MHz clock, providing up to 200 MIPS. Two, 16-bit, bi-directional, double-buffered, DMA ports support simultaneous video acquisition and display, and interface directly to common video decoder and encoder chips with no glue logic. A minimum system that provides all input and output frame buffering contains only three chips, an A236 Chip, a 32-bit wide, synchronous DRAM, and a serial I/sup 2/C EEPROM, plus analog video interface chips. A full set of software development tools that runs under MS Windows is available free, including an enhanced C-compiler that provides a simple method for representing parallel operations on data structures. An evaluation kit containing the software tools and the A236 Video Processing System I is also available.
{"title":"A236 parallel DSP chip provides real-time video processing economically and efficiently","authors":"S. G. Morton","doi":"10.1109/ELECTR.1996.501237","DOIUrl":"https://doi.org/10.1109/ELECTR.1996.501237","url":null,"abstract":"Oxford Computer's A236 parallel digital signal processor chip is flexible, fully programmable and designed to compactly and inexpensively provide live video capture, processing and display. The use of single-chip, parallel processing with integrated data and instruction caches, and an inexpensive, high performance memory system, provide high performance at low cost. An extended, single-instruction multiple-data (SIMD) architecture with one, 24-bit scalar processor and four, 16-bit vector processors, is used. Five instructions are issued each clock cycle with a 40 MHz clock, providing up to 200 MIPS. Two, 16-bit, bi-directional, double-buffered, DMA ports support simultaneous video acquisition and display, and interface directly to common video decoder and encoder chips with no glue logic. A minimum system that provides all input and output frame buffering contains only three chips, an A236 Chip, a 32-bit wide, synchronous DRAM, and a serial I/sup 2/C EEPROM, plus analog video interface chips. A full set of software development tools that runs under MS Windows is available free, including an enhanced C-compiler that provides a simple method for representing parallel operations on data structures. An evaluation kit containing the software tools and the A236 Video Processing System I is also available.","PeriodicalId":119154,"journal":{"name":"Professional Program Proceedings. ELECTRO '96","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125523300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-30DOI: 10.1109/ELECTR.1996.501227
G. Landers
A new class of arithmetic datapath processors are available in either device or embedded form. These reconfigurable arithmetic datapath (RADTM) devices offer reconfigurablilty of FPGAs with the performance of algorithm specific silicon designs. The heart of the RAD architecture is a MacroSequencer. By programming the MacroSequencer to a specific algorithm, the hardware configures itself to that algorithm. Operations are performed concurrently in the pipelined structure. All programming, short term data storage and coefficients are stored within the MacroSequencer. The RAD MacroSequencer may be reconfigured to a new algorithm in as little as 25 ms. The RAD architecture is particularly suited to accelerating the performance of data stream algorithms.
{"title":"Special purpose processor speeds up DSP functions","authors":"G. Landers","doi":"10.1109/ELECTR.1996.501227","DOIUrl":"https://doi.org/10.1109/ELECTR.1996.501227","url":null,"abstract":"A new class of arithmetic datapath processors are available in either device or embedded form. These reconfigurable arithmetic datapath (RADTM) devices offer reconfigurablilty of FPGAs with the performance of algorithm specific silicon designs. The heart of the RAD architecture is a MacroSequencer. By programming the MacroSequencer to a specific algorithm, the hardware configures itself to that algorithm. Operations are performed concurrently in the pipelined structure. All programming, short term data storage and coefficients are stored within the MacroSequencer. The RAD MacroSequencer may be reconfigured to a new algorithm in as little as 25 ms. The RAD architecture is particularly suited to accelerating the performance of data stream algorithms.","PeriodicalId":119154,"journal":{"name":"Professional Program Proceedings. ELECTRO '96","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130569509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1996-04-30DOI: 10.1109/ELECTR.1996.501252
M. Veeraraghavan, T. L. La Porta
We propose a distributed call processing architecture (DCPA) for next generation broadband networks that will support both telephony and data communications users. DCPA features a layered architecture with modularized protocols designed to support different types of end user equipment and servers. A fast connection setup algorithm, called parallel connection control (PCC), is used in networks based on the DCPA model. The intelligent network (IN) principle of having the network provide value-added services is combined with consistently maintaining separate modularized interfaces to different control functions of networks. The latter ensures that flexible control models, such as those used in current computer communications networks, can coexist with intelligent network-based models.
{"title":"Distributed call processing architecture (DCPA)","authors":"M. Veeraraghavan, T. L. La Porta","doi":"10.1109/ELECTR.1996.501252","DOIUrl":"https://doi.org/10.1109/ELECTR.1996.501252","url":null,"abstract":"We propose a distributed call processing architecture (DCPA) for next generation broadband networks that will support both telephony and data communications users. DCPA features a layered architecture with modularized protocols designed to support different types of end user equipment and servers. A fast connection setup algorithm, called parallel connection control (PCC), is used in networks based on the DCPA model. The intelligent network (IN) principle of having the network provide value-added services is combined with consistently maintaining separate modularized interfaces to different control functions of networks. The latter ensures that flexible control models, such as those used in current computer communications networks, can coexist with intelligent network-based models.","PeriodicalId":119154,"journal":{"name":"Professional Program Proceedings. ELECTRO '96","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129708892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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