VALTES boasts a strong record of performance in the field of digital broadcasting receiver testing. Based on our know-how in functional testing, we carry out a safe and reliable testing regime. (Digital television, STB / Digital TV tuners, IP TV, DVD recorders/ BD recorders, mobile One Seg tuners, automobile installed TV tuners, etc.) Moreover, we can respoind to a variety of customer needs in testing required by test centers such as OFDM modulators, signal generators, and test stream production tools.
Service Flow
Leave everything from software test project planning to execution to us
Software Test Planning
Through our comprehensive test project planning, we can help you determine precisely what kinds of testing, functional testing, scheduling and man-hours, and testing range are required.
Software Test Design
From test target specifications and manuals, we ascertain "functions" and "approaches" and compile them into a task list to prevent possible test oversight. In addition, we draft test cases utilizing various techniques to enable the most efficient test execution for specific needs.
Software Test Execution
We conduct automated testing according to function such as tests to confirm the normal operation of each function during actual remote-controlled operation, and tests to confirm normal operation during test streams. We have a replete lineup of equipment at our test center including OFDM modulators, signal generators
Summary Presentation
We analyze test results and any abnormalities we may find and reflect our findings in summary reports that can be used as reference for future projects. Our product and project reports reports also include third party recommendations.
Test Menu
Introduction of test items for a variety of digital broadcasting receivers
(Digital TV, STB/digital TV tuners, IP TV, DVD recorders/BD recorders, mobile One Seg tuners, automobile installed tuners, etc.)
Function Testing
Sophisticated Test Techniques
At VALTES, we determine a "Test Strategy" and "Test Tactics" for high quality achievement. Then, we apply the most suitable methods and techniques for the target domain, taking into consideration the efficiency-risk trade off and providing guidance based on our deep experience. In addition, we conduct test design using a "functional approach list" that we draft ourselves to prevent any oversight in the target functions being tested.Data Broadcast Testing
ARIB Tests
A service to confirm whether digital broadcast receivers are functioning according to ARIB defined specifications . We determine necessary test items based on PSI/SI receiver guidelines, and then draft and maintain test streams in response.
Dpa Tests
In addition to the test streams distributed by The Association for Promotion of Digital Broadcasting (Dpa) , we at VALTES provide 12 Seg and One Seg test streams by normalcy and abnormality type based on our own proprietary approach. Using this test system, we can efficiently confirm display and operation of video/audio for in-development receivers, PSI/SI, subtitles, data broadcasts and two-way communication receiver functions. (Digital TV, STB/digital TV tuners, IP TV, etc.)
BML Browser Testing (Data Broadcast Testing)
With our own in-house developed BML test streams, we conduct both 12 Seg and One Seg data broadcast testing. In addition to the test streams distributed by The Association for Promotion of Digital Broadcasting (Dpa) , we at VALTES provide 12 Seg and One Seg test streams by normalcy and abnormality type based on our own proprietary approach.
ARIB Standards
Dpa Test Streams
Valtes Proprietary Approach
Current Test Stream Response Range
At VALTES, we carry out a detailed audit of standard test streams distributed and managed by the Dpa , and produce our own approach to checking for oversights and deficiencies in normal type and abnormal type testing.
Test Stream Production
At VALTES, we have a strong performance record in producing many test streams from those for BML browser testing to test streams conforming to ARIB standards, where we apply our own approach in providing test streams that are ideally suited to client needs, and achieving quick delivery of high quality software testing.We create test streams that match test content such as 12 Seg, One Seg, BS digital and CS digital.
Automatic Test Stream "CHASER" Infrared remote control testing
CHASER reproduced infrared remote-control operation.
CHASER automatically records test execution sequences by incorporating actual remote-control operations.
Automatic Keystroke System "Woodpecker" - Mobile Terminal Testing
We have a system for collectively controlling test streams for scripts and transmissions to Woodpecker, enabling us to provide effective testing of mobile phone One Seg functions.
Check out our strong record in software testing for many products including digital TVs (domestic, European, North American), STB (settop boxes), digital TV tuners (domestic, Latin American), IP TVs, DVD recorders/BD recorders, automobile-installed TV tuners, and mobile phone One Seg tuners
VALTES is a software testing specialist conducting testing in a variety of fields
Our record in software testing for digital broadcast receivers
Dispatch Service Record
Digital Television
| Range | Content | Target Function for Testing |
|---|---|---|
 |
Function Test | Data broadcasting、two-way broadcasting, limited reception, downloading, copy card, subtitles, CED control, bookmarking, audio/visual formatting, viewer restriction |
| Operation Term | ||
| From 6 years |
Digital Television
| Range | Content | Target Function for Testing |
|---|---|---|
|
Function Test | Data broadcasting、two-way broadcasting, limited reception, downloading, copy card, subtitles, CED control, bookmarking, audio/visual formatting, viewer restriction |
| Operation Term | ||
| 1 Year |
STB
| Range | Content | Target Function for Testing |
|---|---|---|
|
Function Test | EPG (terrestrial digital, BS, broadband broadcasting |
| Operation Term | ||
| 1 Year |
BD Recorder
| Range | Content | Target Function for Testing |
|---|---|---|
|
Function Test | Media function, recordable program editing, playback |
| Operation Term | ||
| 1.5 Years |
DVD Player
| Range | Content | Target Function for Testing |
|---|---|---|
|
Function Test | Media function, playback |
| Operation Term | ||
| 1.5 Years |
Record in Contracted Services
STB
| Range | Range | Target Function for Testing |
|---|---|---|
 |
Function Test | Viewer function, EPG, data broadcasting, recording, recording settings, content playback, viewer restricting, CEC control, two-way reception, downloading, copy card function, subititles, etc. |
| Operation Term | ||
| 400 man-months |
STB
( Digital Tuner）
| Range | Content | Target Function for Testing |
|---|---|---|
|
BML |
BML browser (terrestrial digital, BS, CS), two-way function testing (terrestrial digital, BS) |
| Operation Term | ||
| 50 man-hours |
STB
| Range | Content | Target Function for Testing |
|---|---|---|
|
Function Test | Viewer programming (terrestrial digital, BS, broadband broadcasting) |
| Operation Term | ||
| 14 man-hours |
STB
| Range | Content | Target Function for Testing |
|---|---|---|
|
BML Browser Test |
VALTES proprietary approach (abnormality-type testing) |
| Operation Term | ||
| 1 man-month |
STB
| Range | Range | Target Function for Testing |
|---|---|---|
 |
ARIB Check Test |
Functional testing along TR-B14、TR-B15 receiver guidelines |
| Operation Term | ||
| 15 man-months |
Digital Television
| Range | Content | Target Function for Testing |
|---|---|---|
|
Function Test | TV General |
| Operation Term | ||
（Design）6 man-hours （Execution）102 man-hours |
Off-site testing
Even with off-site testing, Valtes' testing engineers draft test documents (test plan prospectus, test design and specs prospectus and test cases), execute testing and then report on issues such as malfunctions in house at Valtes facilities. An intimate communications system is established between Valtes and the customer to ensure quality and thoroughness with review hearings and quality status reporting conducted at customer sites.
Software Test Solutions
Testing using automated test tools
Staff Voices
We're expected to do testing at a level of efficiency higher than ever before
I am in charge of liquid crystal and plasma display teleivsion system testing. As the functionality of the Internet and video telephony advances, we also find the range and volume of our testing regime increasing yearly.On the other hand, cost reduction demands have made it increasingly challenging when it comes to securing sufficient testing periods and human resources, and we are in a situation where we are expected to produce ever higher levels of efficiency in our testing.
What I think is required of us under these circumstances s the ability to respond flexibly with an expert approach combining "prioritization of target functions for testing," "strong selection and introduction of testing techniques" and "test automation to make up for the problem of insufficient human resources."
Brushing up my skills as a testing specialist and utilizing those skills to contribute to ever higher product quality is of course a given. But I would also like to work hard everyday while never forgetting the viewpoint of a single user, and how to put products out into the world that users can feel comfortable with for a very long time.
Digital Broadcast Receivers
Test Engineer
Atsushi Hoshide
