M73 视频、脉冲系统设备 标准查询与下载



共找到 356 条与 视频、脉冲系统设备 相关的标准,共 24

Defines the requirements for an equipment to measure the performance of PCM equipments in analogue-to-digital(A-D),digital-to-analogue(D-A),analogue-to-analogue(A-A)and digital-to-digital (D-D) modes.

EQUIPMENT FOR MEASURING THE PERFORMANCE OF PCM ENCODERS AND DECODERS Study Group IV

ICS
CCS
M73
发布
1993-03-01
实施

Defines an interface to enable Electronic News Gathering (ENG) signals produced in a non-composite form to be sent through a parallel link between a camera and a portable VTR which are separated by 5m to 10m.

Audio, video and audiovisual systems. Interconnections and matching values. Specification for interface for the interconnection of ENG cameras and portable VTRs using non-composite signals, for 625 line/50 field systems

ICS
33.160.40
CCS
M73
发布
1993-01-15
实施
1993-01-15

The encoding law used is the A-law as specified in Recommendation G.711. The sampling rate, load capacity and the code are also specified in that Recommendation.The number of quantized values is 256. Note-The inversion of bits 2, 4, 6, and 8 is covered by the encoding law and is applicable only to voicechannel time slots.

CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 2048 kbit/s

ICS
CCS
M73
发布
1993-01-01
实施

The ITU Telecornmunication Standardization Sector (ITU-T) is a permanent organ of the Intemational Telecommunication Union. The ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to

Nominal Amplitude of Video Signals at Video Interconnection Points - Maintenance of International Sound- Programme and Television Transmission Circuits (Study Group IV) 6 pp

ICS
35.200
CCS
M73
发布
1993-01-01
实施

This Recommendation gives the characteristics of a PCM multiplex equipment operating at 2048 kbit/s and providing one or several of the following internal digital access options: bidirectional synchronous 64 kbit/s channels (see Figure l a/G.735); unidirectional synchronous 384 kbit/s channels (see Figure 1b/G.735).

CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 2048 kbit/s AND OFFERING SYNCHRONOUS DIGITAL ACCESS AT 384 kbit/s AND/OR 64 kbit/s

ICS
CCS
M73
发布
1993-01-01
实施

This Recommendation gives the characteristics of a PCM multiplex equipment operating at 2048 kbit/s and providing one or several of the following internal digital access options: bidirectional synchronous 64 kbit/s channels (see Figure l a/G.735); unidirectional synchronous 384 kbit/s channels (see Figure 1b/G.735).

CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 2048 kbit/s AND OFFERING SYNCHRONOUS DIGITAL ACCESS AT 384 kbit/s AND/OR 64 kbit/s

ICS
CCS
M73
发布
1993-01-01
实施

The CCITT, considering that pulse code modulation (PCM) multiplex equipments are already used in various countries, in particular to provide a large number of short-distance telephone circuits on certain pairs in existing cables, and in order to minimize the number of different PCM multiplex equipments providing circuits which may be used in international connections, recommends that Administrations concerned should make their choice between the two primary PCM multiplex equipments described in Recommendations G.732 and G.733.

PRIMARY PCM MULTIPLEX EQUIPMENT FOR VOICE FREQUENCIES

ICS
CCS
M73
发布
1993-01-01
实施

The CCITT, considering that pulse code modulation (PCM) multiplex equipments are already used in various countries, in particular to provide a large number of short-distance telephone circuits on certain pairs in existing cables, and in order to minimize the number of different PCM multiplex equipments providing circuits which may be used in international connections, recommends that Administrations concerned should make their choice between the two primary PCM multiplex equipments described in Recommendations G.732 and G.733.

PRIMARY PCM MULTIPLEX EQUIPMENT FOR VOICE FREQUENCIES

ICS
CCS
M73
发布
1993-01-01
实施

The encoding law used is the A-law as specified in Recommendation G.711. The sampling rate, load capacity and the code are also specified in that Recommendation.The number of quantized values is 256. Note-The inversion of bits 2, 4, 6, and 8 is covered by the encoding law and is applicable only to voicechannel time slots.

CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 2048 kbit/s

ICS
CCS
M73
发布
1993-01-01
实施

The encoding law used is the µ-law as specified in Recommendation G.711. The sampling rate, load capacity and the code are also specified in that Recommendation. The number of quantized values is 255. Two character signals are reserved for zero value (11111111 and 01111111). In some networks the all-0 character signal (00000000) is eliminated to avoid loss of timing information to the digital line, resulting in 254 quantized values.

CHARACTERISTICS OF PRIMARY PCM MULTIPLEX EQUIPMENT OPERATING AT 1544 kbit/s

ICS
CCS
M73
发布
1993-01-01
实施

This practice enables image quality evaluation on samples generated by various imaging systems. It can be used to conduct investigations, including image reflectance, sharpness, voids, character width, and degradation of materials. The test instruments can be used for research and development projects as well as for manufacturing control.1.1 This practice covers the use of the reflectance-type optical character testers with a 0.008-in. (0.203-mm) aperture as test instruments for measuring image quality. 1.2 Although other systems may be available, this practice covers two of the most commonly used instruments; the Clearwave 082 Optical Character Tester and the Macbeth Print Contrast Meter. 1.3 These instruments also have the capability of predicting machine readability of documents. This practice does not address this capability. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Using 0.008-in. (0.203-mm) Aperture Reflectometers as Test Instruments for Measuring Visual Image Quality of Business Copy Images

ICS
37.100.10
CCS
M73
发布
1993
实施

This practice enables image quality evaluation on samples generated by various imaging systems. It can be used to conduct investigations, including image reflectance, sharpness, voids, character width, and degradation of materials. The test instruments can be used for research and development projects as well as for manufacturing control.1.1 This practice covers the use of the reflectance-type optical character testers with a 0.008-in. (0.203-mm) aperture as test instruments for measuring image quality.1.2 Although other systems may be available, this practice covers two of the most commonly used instruments; the Clearwave 082 Optical Character Tester and the Macbeth Print Contrast Meter.1.3 These instruments also have the capability of predicting machine readability of documents. This practice does not address this capability.1.4 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Using 0.008-in. (0.203-mm) Aperture Reflectometers as Test Instruments for Measuring Visual Image Quality of Business Copy Images

ICS
37.100.10 (Reproduction equipment)
CCS
M73
发布
1993
实施

Gcneral specifications of broadcasting camera

ICS
33.160.01
CCS
M73
发布
1992-12-01
实施
1993-02-01

Technical Requirements of Monitor For Television Broadcast Center

ICS
33.160.01
CCS
M73
发布
1992-12-01
实施
1993-02-01

Audio-video products and accessories

ICS
33.160.01
CCS
M73
发布
1992-08
实施

This amendment, forms part of MIL-M-49236A(CR), dated 30 October 1986, is approved for use by the Communication Electronic Command, Deparment of the Army, and is available for use by all Departments and Agencies of the Department of Defense.

RESTORER, PULSE FORM, TD-1218/G

ICS
33.160.40
CCS
M73
发布
1992-06-24
实施

Specifies the implementation of video information as an optional addition to IEC 908. Reference is made to IEC 856 and IEC 857. Applies to a pre-recorded optical reflective disc system called "compact disc video (CD video)" containing digital audio and "

Compact disc video system; 12 cm CD-V

ICS
33.160.40
CCS
M73
发布
1992-06
实施

States the technical requirements for the recording function with digital audio interface signals and for digital output signals on digital audio tape recorders. Annex A gives a list of defined category codes and a white list.

Digital audio tape cassette system (DAT); part 6: serial copy management system

ICS
33.160.30
CCS
M73
发布
1992-06
实施
1999-12-28

Scope. This drawing describes device requirements for class B microcircuits in accordance with 1.2.1 of MIL-STD-883, "Provisions for the use of MIL-STD-883 in conjunction with compliant non-JAN devices".

MICROCIRCUITS, LINEAR, VIDEO A/D CONVERTER, 4-BIT, 25 MSPS, MONOLITHIC SILICON

ICS
33.160.40
CCS
M73
发布
1992-05-18
实施

本标准规定了CCD彩色单板应用电视摄像机的技术要求、测试方法、检验规则以及标志、包装、运输、贮存等。 本标准适用于符合GB 12647《通用型应用电视制式》的CCD彩色单板应用电视摄像机。

Generic specification for CCD single-chip colour applied TV cameras

ICS
33.160.40
CCS
M73
发布
1991
实施
1991



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